Chapter 1722

There"a*gain` (?) , adv. In opposition; against one's course. [Obs.]

If that him list to stand thereagain . Chaucer.

There-anent <Xpage=1496>

There"-a*nent` (?) , adv. Concerning that. [Scot.]

Thereat <Xpage=1496>

There*at" (?) , adv. 1. At that place; there.

Wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat . Matt. vii. 13.

2. At that occurrence or event; on that account.

Every error is a stain to the beauty of nature; for which cause it blusheth thereat . Hooker.

Therebefore, Therebiforn <Xpage=1496>

There`be*fore" (?) , There`bi*forn" (?) , adv. Before that time; beforehand. [Obs.]

Many a winter therebiforn . Chaucer.

Thereby <Xpage=1496>

There*by" (?) , adv. 1. By that; by that means; in consequence of that.

Acquaint now thyself with him, and be at peace; thereby good shall come unto thee. Job xxii. 21.

2. Annexed to that. " Thereby hangs a tale."

Shak.

3. Thereabout; -- said of place, number, etc.

Chaucer.

Therefor <Xpage=1496>

There*for" (?) , adv. [ There + for. Cf. Therefore .] For that, or this; for it.

With certain officers ordained therefore . Chaucer.

Therefore <Xpage=1496>

There"fore (?) , conj. & adv. [OE. therfore . See There , and Fore , adv. , For , and cf. Therefor .] 1. For that or this reason, referring to something previously stated; for that.

I have married a wife, and therefore I can not come. Luke xiv. 20.

Behold, we have forsaken all, and followed thee; what shall we have therefore ? Matt. xix. 27.

2. Consequently; by consequence.

He blushes; therefore he is guilty. Spectator.

Syn. -- See Then .

Therefrom <Xpage=1496>

There*from" (?) , adv. From this or that.

Turn not aside therefrom to the right hand or to the left. John. xxiii. 6.

Therein <Xpage=1496>

There*in" (?) , adv. In that or this place, time, or thing; in that particular or respect.

Wyclif.

He pricketh through a fair forest, Therein is many a wild beast. Chaucer.

Bring forth abundantly in the earth, and multiply therein . Gen. ix. 7.

Therein our letters do not well agree. Shak.

Thereinto <Xpage=1496>

There`in*to" (?) , adv. Into that or this, or into that place.

Bacon.

Let not them . . . enter thereinto . Luke xxi. 21.

Thereof <Xpage=1496>

There*of" (?) , adv. Of that or this.

In the day that thou eatest thereof , thou shalt surely die. Gen. ii. 17.

Thereology <Xpage=1496>

The`re*ol"o*gy (?) , n. Therapeutios.

Thereon <Xpage=1496>

There*on" (?) , adv. [AS. <?/<?/ron . See There , and On .] On that or this.

Chaucer.

Then the king said, Hang him thereon . Esther vii. 9.

Thereout <Xpage=1496>

There*out" (?) , adv. 1. Out of that or this.

He shall take thereout his handful of the flour. Lev. ii. 2.

2. On the outside; out of doors. [Obs.]

Chaucer.

Thereto <Xpage=1496>

There*to" (?) , adv. 1. To that or this.

Chaucer.

2. Besides; moreover. [Obs.]

Spenser.

Her mouth full small, and thereto soft and red. Chaucer.

Theretofore <Xpage=1496>

There`to*fore" (?) , adv. Up to that time; before then; -- correlative with heretofore .

Thereunder <Xpage=1496>

There*un"der (?) , adv. Under that or this.

Thereunto <Xpage=1496>

There`un*to" (?) , adv. Unto that or this; thereto; besides.

Shak.

Thereupon <Xpage=1496>

There`up*on" (?) , adv. 1. Upon that or this; thereon. "They shall feed thereupon ."

Zeph. ii. 7.

2. On account, or in consequence, of that; therefore.

[He] hopes to find you forward, . . . And thereupon he sends you this good news. Shak.

3. Immediately; at once; without delay.

Therewhile <Xpage=1496>

There*while" (?) , adv. At that time; at the same time. [Obs.]

Laud.

Therewith <Xpage=1496>

There*with" (?) , adv. 1. With that or this. "I have learned in whatsoever state I am, therewith to be content."

Phil. iv. 11.

2. In addition; besides; moreover.

To speak of strength and therewith hardiness. Chaucer.

3. At the same time; forthwith. [Obs.]

Johnson.

Therewithal <Xpage=1496>

There`with*al" (?) , adv. 1. Over and above; besides; moreover. [Obs.]

Daniel.

And therewithal it was full poor and bad. Chaucer.

2. With that or this; therewith; at the same time.

Thy slanders I forgive; and therewithal Remit thy other forfeits. Shak.

And therewithal one came and seized on her, And Enid started waking. Tennyson.

Therf <Xpage=1496>

Therf (?) , a. [AS. <?/eorf ; akin to OHG. derb , Icel. <?/jarfr .] Not fermented; unleavened; -- said of bread, loaves, etc. [Obs.]

Pask and the feast of therf loaves. Wyclif.

<page="1497"> Page 1497

Theriac, Theriaca <Xpage=1497>

The"ri*ac (?) , The*ri"a*ca (?) , n. [L. theriaca an antidote against the bite of serpents, Gr. <?/: cf. F. th\'82riaque . See Treacle .] 1. (Old Med.) An ancient composition esteemed efficacious against the effects of poison; especially, a certain compound of sixty-four drugs, prepared, pulverized, and reduced by means of honey to an electuary; -- called also theriaca Andromachi , and Venice treacle .

2. Treacle; molasses.

British Pharm.

Theriac, Theriacal <Xpage=1497>

The"ri*ac (?) , The*ri"a*cal (?) , a. [Cf. F. th\'82riacal .] Of or pertaining to theriac; medicinal. " Theriacal herbs."

Bacon.

Therial <Xpage=1497>

The"ri*al (?) , a. Theriac. [R.]

Holland.

Theriodont <Xpage=1497>

The"ri*o*dont (?) , n. (Paleon.) One of the Theriodontia. Used also adjectively.

Theriodonta <Xpage=1497>

The`ri*o*don"ta (?) , n. pl. [NL.] (Paleon.) Same as Theriodontia .

Theriodontia <Xpage=1497>

The`ri*o*don"ti*a (?) , n. pl. [NL., fr. Gr. <?/ (dim. of <?/ a beast) + <?/, <?/, a tooth.] (Paleon.) An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. Called also Theromorpha .

&hand; They had biconcave vertebr\'91, ambulatory limbs, and a well-developed pelvis and shoulder girdle. Some of the species had large maxillary teeth. The head somewhat resembled that of a turtle. The Dicynodont is one of the best-known examples. See Dicynodont .

Theriotomy <Xpage=1497>

The`ri*ot"o*my (?) , n. [Gr. <?/ wild beast + <?/ to cut.] Zo\'94tomy.

Therm\'91 <Xpage=1497>

Ther"m\'91 (?) , n. pl. [L. See Thermal .] Springs or baths of warm or hot water.

Thermal <Xpage=1497>

Ther"mal (?) , a. [L. thermae hot springs, fr. Gr. <?/, pl. of <?/ heat, fr. <?/ hot, warm, <?/ to warm, make hot; perhaps akin to L. formus warm, and E. forceps .] Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters .

The thermal condition of the earth. J. D. Forbes.

Thermal conductivity , Thermal spectrum . See under Conductivity , and Spectrum . -- Thermal unit (Physics) , a unit chosen for the comparison or calculation of quantities of heat. The unit most commonly employed is the amount of heat necessary to raise the temperature of one gram or one pound of water from zero to one degree Centigrade. See Calorie , and under Unit .

Thermally <Xpage=1497>

Ther"mal*ly , adv. In a thermal manner.

Thermetograph <Xpage=1497>

Ther*met"o*graph (?) , n. [Gr. <?/ heat + <?/ measure + -graph .] A self-registering thermometer, especially one that registers the maximum and minimum during long periods.

Nichol.

Thermic <Xpage=1497>

Ther"mic (?) , a. [Gr. <?/ heat.] Of or pertaining to heat; due to heat; thermal; as, thermic lines .

Thermic balance . See Bolometer . -- Thermic fever (Med.) , the condition of fever produced by sunstroke. See Sunstroke . -- Thermic weight . (Mech.) Same as Heat weight , under Heat .

Thermidor <Xpage=1497>

Ther`mi`dor" (?) , n. [F., fr. Gr. <?/ warm, hot.] The eleventh month of the French republican calendar, -- commencing July 19, and ending August 17. See the Note under Vend\'82miaire .

Thermifugine <Xpage=1497>

Ther*mif"u*gine (?) , n. [Gr. <?/ heat + L. fugere to flee.] (Chem.) An artificial alkaloid of complex composition, resembling thalline and used as an antipyretic, -- whence its name.

Thermo- <Xpage=1497>

Ther"mo- (?) . A combining form from Gr. qe`rmh heat , qermo`s hot , warm ; as in thermo chemistry, thermo dynamic.

Thermobarometer <Xpage=1497>

Ther`mo*ba*rom"e*ter (?) , n. [ Thermo- + barometer .] (Physics) An instrument for determining altitudes by the boiling point of water.

Thermobattery <Xpage=1497>

Ther`mo*bat"ter*y (?) , n. [ Thermo- + battery .] A thermoelectric battery; a thermopile.

Thermocautery <Xpage=1497>

Ther`mo*cau"ter*y (?) , n. [ Thermo- + cautery .] (Surg.) Cautery by the application of heat.

Paquelin's thermocautery , thermocautery by means of a hollow platinum point, which is kept constantly hot by the passage through it of benzine vapor.

Thermochemic, Thermochemical <Xpage=1497>

Ther`mo*chem"ic (?) , Ther`mo*chem"ic*al (?) , a. (Chem. Physics) Of or pertaining to thermochemistry; obtained by, or employed in, thermochemistry.

Thermochemistry <Xpage=1497>

Ther`mo*chem"is*try (?) , n. [ Thermo- + chemistry .] That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.

Thermochrosy <Xpage=1497>

Ther*moch"ro*sy (?) , n. [ Thermo- + Gr. <?/ coloring.] (Physics) The property possessed by heat of being composed, like light, of rays of different degrees of refrangibility, which are unequal in rate or degree of transmission through diathermic substances.

Thermocurrent <Xpage=1497>

Ther"mo*cur`rent (?) , n. [ Thermo- + current .] (Physics) A current, as of electricity, developed, or set in motion, by the action of heat.

Thermodynamic <Xpage=1497>

Ther`mo*dy*nam"ic (?) , a. [ Thermo- + dynamic .] (Physics) Relating to thermodynamics; caused or operated by force due to the application of heat.

Thermodynamic function . See Heat weight , under Heat .

Thermodynamics <Xpage=1497>

Ther`mo*dy*nam"ics (?) , n. The science which treats of the mechanical action or relations of heat.

Thermoelectric <Xpage=1497>

Ther`mo*e*lec"tric (?) , a. (Physics) Pertaining to thermoelectricity; as, thermoelectric currents .

Thermoelectricity <Xpage=1497>

Ther`mo*e`lec*tric"i*ty (?) , n. [ Thermo- + electricity : cf. F. thermo\'82lectricit\'82 .] (Physics) Electricity developed in the action of heat. See the Note under Electricity .

Thermoelectrometer <Xpage=1497>

Ther`mo*e`lec*trom"e*ter (?) , n. [ Thermo- + electrometer .] (Physics) An instrument for measuring the strength of an electric current in the heat which it produces, or for determining the heat developed by such a current.

Thermogen <Xpage=1497>

Ther"mo*gen (?) , n. [ Thermo- + -gen .] (Old Chem.) Caloric; heat; regarded as a material but imponderable substance.

Thermogenic <Xpage=1497>

Ther`mo*gen"ic (?) , a. (Physiol.) Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues .

Thermogenous <Xpage=1497>

Ther*mog"e*nous (?) , a. [ Thermo- + -genous .] (Physiol.) Producing heat; thermogenic.

Thermograph <Xpage=1497>

Ther"mo*graph (?) , n. [ Thermo- + -graph .] (Physics) An instrument for automatically recording indications of the variation of temperature.

Thermology <Xpage=1497>

Ther*mol"o*gy (?) , n. [ Thermo- + -logy .] A discourse on, or an account of, heat.

Whewell.

Thermolysis <Xpage=1497>

Ther*mol"y*sis (?) , n. [ Thermo- + Gr. <?/ to loose.] (Chem.) The resolution of a compound into parts by heat; dissociation by heat.

Thermolyze <Xpage=1497>

Ther"mo*lyze (?) , v. t. (Chem.) To subject to thermolysis; to dissociate by heat.

Thermomagnetism <Xpage=1497>

Ther`mo*mag"net*ism (?) , n. [ Thermo- + magnetism .] Magnetism as affected or caused by the action of heat; the relation of heat to magnetism.

Thermometer <Xpage=1497>

Ther*mom"e*ter (?) , n. [ Thermo- + -meter: cf. F. thermom\'8atre. See Thermal .] (Physics) An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompained by proportional changes in their volumes or dimensions.

&hand; The thermometer usually consists of a glass tube of capillary bore, terminating in a bulb, and containing mercury or alcohol, which expanding or contracting according to the temperature to which it is exposed, indicates the degree of heat or cold by the amount of space occupied, as shown by the position of the top of the liquid column on a graduated scale. See Centigrade , Fahrenheit , and R\'82aumur .

To reduce degrees Fahrenheit to degrees Centigrade, substract 32\'f8 and multiply by <frac59/; to reduce degrees Centigrade to degrees Fahrenheit, multiply by <frac95/ and add 32\'f8.

Air thermometer , Balance thermometer , etc. See under Air , Balance , etc. -- Metallic thermometer , a form of thermometer indicating changes of temperature by the expansion or contraction of rods or strips of metal. -- Register thermometer , &or; Self-registering thermometer , a thermometer that registers the maximum and minimum of temperature occurring in the interval of time between two consecutive settings of the instrument. A common form contains a bit of steel wire to be pushed before the column and left at the point of maximum temperature, or a slide of enamel, which is drawn back by the liquid, and left within it at the point of minimum temperature.

Thermometric, Thermometrical <Xpage=1497>

Ther`mo*met"ric (?) , Ther`mo*met"ric*al (?) , a. [Cf. F. thermom\'82trique .] 1. Of or pertaining to a thermometer; as, the thermometrical scale or tube .

2. Made, or ascertained, by means of a thermometer; as, thermometrical observations .

Thermometrically <Xpage=1497>

Ther`mo*met"ric*al*ly (?) , adv. In a thermometrical manner; by means of a thermometer.

Thermometrograph <Xpage=1497>

Ther`mo*met"ro*graph (?) , n. [ Thermo- + Gr. <?/ measure + -graph .] (Physics) An instrument for recording graphically the variations of temperature, or the indications of a thermometer.

Thermometry <Xpage=1497>

Ther*mom"e*try (?) , n. The estimation of temperature by the use of a thermometric apparatus.

Thermomultiplier <Xpage=1497>

Ther`mo*mul"ti*pli`er (?) , n. [ Thermo- + multiplier .] Same as Thermopile .

Thermopile <Xpage=1497>

Ther"mo*pile (?) , n. [ Thermo- + pile a heap.] (Physics) An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth, or any two metals having different capacities for the conduction of heat, connected with an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of bars when exposed even to the feeblest degrees of heat.

Thermoscope <Xpage=1497>

Ther"mo*scope (?) , n. [ Thermo- + -scope .] (Physics) An instrument for indicating changes of temperature without indicating the degree of heat by which it is affected; especially, an instrument contrived by Count Rumford which, as modified by Professor Leslie, was afterward called the differential thermometer .

Thermoscopic <Xpage=1497>

Ther`mo*scop"ic (?) , a. (Physics) Of or pertaining to the thermoscope; made by means of the thermoscope; as, thermoscopic observations .

Thermostat <Xpage=1497>

Ther"mo*stat (?) , n. [ Thermo- + Gr. <?/ to make to stand.] (Physics) A self-acting apparatus for regulating temperature by the unequal expansion of different metals, liquids, or gases by heat, as in opening or closing the damper of a stove, or the like, as the heat becomes greater or less than is desired.

Thermostatic <Xpage=1497>

Ther`mo*stat"ic (?) , a. (Physics) Of or pertaining to the thermostat; made or effected by means of the thermostat.

Thermosystaltic <Xpage=1497>

Ther`mo*sys*tal"tic (?) , a. [ Thermo- + systalic .] (Physiol.) Influenced in its contraction by heat or cold; -- said of a muscle.

Thermotaxic <Xpage=1497>

Ther`mo*tax"ic (?) , a. [ Thermo- + Gr. <?/ arrangement.] (Physiol.) Pertaining to, or connected with, the regulation of temperature in the animal body; as, the thermotaxic nervous system .

Thermotension <Xpage=1497>

Ther`mo*ten"sion (?) , n. [ Thermo- + tension .] A process of increasing the strength of wrought iron by heating it to a determinate temperature, and giving to it, while in that state, a mechanical strain or tension in the direction in which the strength is afterward to be exerted.

Thermotic, Thermotical <Xpage=1497>

Ther*mot"ic (?) , Ther*mot"ic*al (?) , a. [Gr. <?/ heat, fr. <?/ hot.] Of or pertaining to heat; produced by heat; as, thermotical phenomena .

Whewell.

Thermotics <Xpage=1497>