Chapter 1804

Walpole.

Uniradiated <Xpage=1576>

U`ni*ra"di*a`ted (?) , a. [ Uni- + radiated .] Having but one ray.

Uniramous <Xpage=1576>

U`ni*ra"mous (?) , a. [ Uni- + L. ramus branch.] (Biol.) Having but one branch.

Uniseptate <Xpage=1576>

U`ni*sep"tate (?) , a. [ Uni- + septate .] (Bot.) Having but one septum, or partition; -- said of two-celled fruits, such as the silicles of cruciferous plants.

Uniserial <Xpage=1576>

U`ni*se"ri*al (?) , a. [ Uni- + serial .] Having only one row or series.

Uniseriate <Xpage=1576>

U`ni*se"ri*ate (?) , a. [ Uni- + seriate .] Having one line or series; uniserial. -- U`ni*se"ri*ate*ly , adv.

Unisexual <Xpage=1576>

U`ni*sex"u*al (?) , a. [ Uni- + sexual : cf. F. unisexuel .] (Biol.) Having one sex only, as plants which have the male and female flowers on separate individuals, or animals in which the sexes are in separate individuals; di&oe;cious; -- distinguished from bisexual , or hermaphrodite . See Di&oe;cious .

Unisilicate <Xpage=1576>

U`ni*sil"i*cate (?) , n. [ Uni- + silicate .] (Min.) A salt of orthosilicic acid, H4SiO4 ; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2 MgO.SiO2 .

Unison <Xpage=1576>

U"ni*son (?; 277) , n. [LL. unisonus having the same sound; L. unus one + sonus a sound: cf. F. unisson , It. unisono . See One , and Sound a noise.] 1. Harmony; agreement; concord; union.

2. (Mus.) Identity in pitch; coincidence of sounds proceeding from an equality in the number of vibrations made in a given time by two or more sonorous bodies. Parts played or sung in octaves are also said to be in unison , or in octaves.

&hand; If two cords of the same substance have equal length, thickness, and tension, they are said to be in unison , and their sounds will be in unison . Sounds of very different qualities and force may be in unison , as the sound of a bell may be in unison with a sound of a flute. Unison , then, consists in identity of pitch alone, irrespective of quality of sound, or timbre, whether of instruments or of human voices. A piece or passage is said to be sung or played in unison when all the voices or instruments perform the same part, in which sense unison is contradistinguished from harmony .

3. A single, unvaried. [R.]

Pope.

In unison , in agreement; agreeing in tone; in concord.

Unison <Xpage=1576>

U"ni*son (?; 277) , a. [Cf. It. unisono . See Unison , n. ] 1. Sounding alone. [Obs.]

[sounds] intermixed with voice, Choral or unison . Milton.

2. (Mus.) Sounded alike in pitch; unisonant; unisonous; as, unison passages, in which two or more parts unite in coincident sound .

Unisonal <Xpage=1576>

U*nis"o*nal (?) , a. Being in unison; unisonant. -- U*nis"o*nal*ly , adv.

Unisonance <Xpage=1576>

U*nis"o*nance (?) , n. [See Unisonant .] Accordance of sounds; unison.

Unisonant <Xpage=1576>

U*nis"o*nant (?) , a. [ Uni- + sonant . See Unison .] Being in unison; having the same degree of gravity or acuteness; sounded alike in pitch.

Unisonous <Xpage=1576>

U*nis"o*nous (?) , a. [See Unison .] Being in unison; unisonant.

Busby.

Unit <Xpage=1576>

U"nit (?) , n. [Abbrev. from unity .] 1. A single thing or person.

2. (Arith.) The least whole number; one.

Units are the integral parts of any large number. I. Watts.

3. A gold coin of the reign of James I., of the value of twenty shillings.

Camden.

4. Any determinate amount or quantity (as of length, time, heat, value) adopted as a standard of measurement for other amounts or quantities of the same kind.

5. (Math.) A single thing, as a magnitude or number, regarded as an undivided whole.

Abstract unit , the unit of numeration; one taken in the abstract; the number represented by 1. The term is used in distinction from concrete , or determinate , unit , that is, a unit in which the kind of thing is expressed; a unit of measure or value; as 1 foot, 1 dollar, 1 pound, and the like. -- Complex unit (Theory of Numbers) , an imaginary number of the form a + b -1 , when a 2 + b 2 = 1 . -- Duodecimal unit , a unit in the scale of numbers increasing or decreasing by twelves. -- Fractional unit , the unit of a fraction; the reciprocal of the denominator; thus, <frac14/ is the unit of the fraction <frac34/. -- Integral unit , the unit of integral numbers, or 1. -- Physical unit , a value or magnitude conventionally adopted as a unit or standard in physical measurements. The various physical units are usually based on given units of length, mass, and time, and on the density or other properties of some substance, for example, water. See Dyne , Erg , Farad , Ohm , Poundal , etc. -- Unit deme (Biol.) , a unit of the inferior order or orders of individuality. -- Unit jar ( Elec .), a small, insulated Leyden jar, placed between the electrical machine and a larger jar or battery, so as to announce, by its repeated discharges, the amount of electricity passed into the larger jar. -- Unit of heat (Physics) , a determinate quantity of heat adopted as a unit of measure; a thermal unit (see under Thermal ). Water is the substance generally employed, the unit being one gram or one pound, and the temperature interval one degree of the Centigrade or Fahrenheit scale. When referred to the gram, it is called the gram degree . The British unit of heat, or thermal unit, used by engineers in England and in the United States, is the quantity of heat necessary to raise one pound of pure water at and near its temperature of greatest density (39.1&deg; Fahr.) through one degree of the Fahrenheit scale. Rankine . -- Unit of illumination , the light of a sperm candle burning 120 grains per hour. Standard gas, burning at the rate of five cubic feet per hour, must have an illuminating power equal to that of fourteen such candles. -- Unit of measure (as of length, surface, volume, dry measure, liquid measure, money, weight, time, and the like), in general, a determinate quantity or magnitude of the kind designated, taken as a standard of comparison for others of the same kind, in assigning to them numerical values, as 1 foot, 1 yard, 1 mile, 1 square foot, 1 square yard, 1 cubic foot, 1 peck, 1 bushel, 1 gallon, 1 cent, 1 ounce, 1 pound, 1 hour, and the like; more specifically, the fundamental unit adopted in any system of weights, measures, or money, by which its several denominations are regulated, and which is itself defined by comparison with some known magnitude, either natural or empirical, as, in the United States, the dollar for money, the pound avoirdupois for weight, the yard for length, the gallon of 8.3389 pounds avoirdupois of water at 39.8&deg; Fahr. (about 231 cubic inches) for liquid measure, etc.; in Great Britain, the pound sterling, the pound troy, the yard, or <frac1x108719/ part of the length of a second's pendulum at London, the gallon of 277.274 cubic inches, etc.; in the metric system, the meter, the liter, the gram, etc. -- Unit of power . (Mach.) See Horse power . -- Unit of resistance . (Elec.) See Resistance , n. , 4, and Ohm . -- Unit of work (Physics) , the amount of work done by a unit force acting through a unit distance, or the amount required to lift a unit weight through a unit distance against gravitation. See Erg , Foot Pound , Kilogrammeter . -- Unit stress (Mech. Physics) , stress per unit of area; intensity of stress. It is expressed in ounces, pounds, tons, etc., per square inch, square foot, or square yard, etc., or in atmospheres, or inches of mercury or water, or the like.

Unitable <Xpage=1576>

U*nit"a*ble (?) , a. Capable of union by growth or otherwise.

Owen.

Unitarian <Xpage=1576>

U`ni*ta"ri*an (?) , n. [Cf. F. unitaire , unitairien , NL. unitarius . See Unity .] 1. (Theol.) One who denies the doctrine of the Trinity, believing that God exists only in one person; a unipersonalist; also, one of a denomination of Christians holding this belief.

2. One who rejects the principle of dualism.

3. A monotheist. [R.]

Fleming.

Unitarian <Xpage=1576>

U`ni*ta"ri*an (?) , a. Of or pertaining to Unitarians, or their doctrines.

Unitarianism <Xpage=1576>

U`ni*ta"ri*an*ism (?) , n. [Cf. F. unitairianisme .] The doctrines of Unitarians.

Unitarianize <Xpage=1576>

U`ni*ta"ri*an*ize (?) , v. t. & i. [ imp. & p. p Unitarianized (?) ; p. pr. & vb. n. Unitarianizing (?) .] To change or turn to Unitarian views.

Unitary <Xpage=1576>

U"nit*a*ry (?) , a. 1. Of or pertaining to a unit or units; relating to unity; as, the unitary method in arithmetic .

2. Of the nature of a unit; not divided; united.

Unitary theory (Chem.) , the modern theory that the molecules of all complete compounds are units, whose parts are bound together in definite structure, with mutual and reciprocal influence on each other, and are not mere aggregations of more or less complex groups; -- distinguished from the dualistic theory .

Unite <Xpage=1576>

U*nite" (?) , v. t. [ imp. & p. p. United ; p. pr. & vb. n. Uniting .] [L. unitus , p. p. of unire to unite, from unus one. See One .] 1. To put together so as to make one; to join, as two or more constituents, to form a whole; to combine; to connect; to join; to cause to adhere; as, to unite bricks by mortar; to unite iron bars by welding; to unite two armies.

2. Hence, to join by a legal or moral bond, as families by marriage, nations by treaty, men by opinions; to join in interest, affection, fellowship, or the like; to cause to agree; to harmonize; to associate; to attach.

Under his great vicegerent reign abide, United as one individual soul. Milton.

The king proposed nothing more than to unite his kingdom in one form of worship. Clarendon.

Syn. -- To add; join; annex; attach. See Add .

Unite <Xpage=1576>

U*nite" , v. i. 1. To become one; to be cemented or consolidated; to combine, as by adhesion or mixture; to coalesce; to grow together.

2. To join in an act; to concur; to act in concert; as, all parties united in signing the petition .

Unite <Xpage=1576>

U*nite" , a [L. unitus , p. p. See Unite , v. t. ] United; joint; as, unite consent . [Obs.]

J. Webster.

United <Xpage=1576>

U*nit"ed , a. Combined; joined; made one.

United Brethren . (Eccl.) See Moravian , n. -- United flowers (Bot.) , flowers which have the stamens and pistils in the same flower. -- The United Kingdom , Great Britain and Ireland; -- so named since January 1, 1801, when the Legislative Union went into operation. -- United Greeks (Eccl.) , those members of the Greek Church who acknowledge the supremacy of the pope; -- called also uniats .

Unitedly <Xpage=1576>

U*nit"ed*ly , adv. In an united manner.

Dryden.

Uniter <Xpage=1576>

U*nit"er (?) , n. One who, or that which, unites.

Uniterable <Xpage=1576>

U*nit"er*a*ble (?) , a. Not iterable; incapable of being repeated. [Obs.] "To play away an uniterable life."

Sir T. Browne.

Unition <Xpage=1576>

U*ni"tion (?) , n. [LL. unitio , from L. unire . See Unite , v. t. ] The act of uniting, or the state of being united; junction. [Obs.]

Wiseman.

Unitive <Xpage=1576>

U"ni*tive (?) , a. [LL. unitivus : cf. F. unitif .] Having the power of uniting; causing, or tending to produce, union.

Jer. Taylor.

Unitively <Xpage=1576>

U"ni*tive*ly , adv. In a unitive manner.

Cudworth.

Unitize <Xpage=1576>

U"nit*ize (?) , v. t. [ imp. & p. p. Unitized (?) ; p. pr. & vb. n. Unitizing (?) .] To reduce to a unit, or one whole; to form into a unit; to unify.

Unitude <Xpage=1576>

U"ni*tude (?) , n. Unity. [R.]

H. Spenser.

Unity <Xpage=1576>

U"ni*ty (?) , n. ; pl. Unities (#) . [OE. unite , F. unit\'82 , L. unitas , from unus one. See One , and cf. Unit .] 1. The state of being one; oneness.

Whatever we can consider as one thing suggests to the understanding the idea of unity . Locks.

&hand; Unity is affirmed of a simple substance or indivisible monad, or of several particles or parts so intimately and closely united as to constitute a separate body or thing. See the Synonyms under Union .

2. Concord; harmony; conjunction; agreement; uniformity; as, a unity of proofs; unity of doctrine.

Behold, how good and how pleasant it is for brethren to dwell together in unity ! Ps. cxxxiii. 1.

3. (Math.) Any definite quantity, or aggregate of quantities or magnitudes taken as one, or for which 1 is made to stand in calculation; thus, in a table of natural sines, the radius of the circle is regarded as unity .

&hand; The number 1, when it is not applied to any particular thing, is generally called unity .

4. (Poetry & Rhet.) In dramatic composition, one of the principles by which a uniform tenor of story and propriety of representation are preserved; conformity in a composition to these; in oratory, discourse, etc., the due subordination and reference of every part to the development of the leading idea or the eastablishment of the main proposition.

&hand; In the Greek drama, the three unities required were those of action , of time , and of place ; that is, that there should be but one main plot; that the time supposed should not exceed twenty-four hours; and that the place of the action before the spectators should be one and the same throughout the piece.

5. (Fine Arts & Mus.) Such a combination of parts as to constitute a whole, or a kind of symmetry of style and character.

6. (Law) The peculiar characteristics of an estate held by several in joint tenancy.

&hand; The properties of it are derived from its unity , which is fourfold; unity of interest , unity of title , unity of time , and unity of possession ; in other words, joint tenants have one and the same interest, accruing by one and the same conveyance, commencing at the same time, and held by one and the same undivided possession. Unity of possession is also a joint possession of two rights in the same thing by several titles, as when a man, having a lease of land, afterward buys the fee simple, or, having an easement in the land of another, buys the servient estate.

<page="1577"> Page 1577

At unity , at one. -- Unity of type . (Biol.) See under Type .

Syn. -- Union; oneness; junction; concord; harmony. See Union .

Univalence <Xpage=1577>

U*niv"a*lence (?) , n. (Chem.) The quality or state of being univalent.

Univalent <Xpage=1577>

U*niv"a*lent (?) , a. [ Uni- + L. valens , -entis , p. pr. See Valence .] (Chem.) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals.

Univalve <Xpage=1577>

U"ni*valve (?) , n. [ Uni- + valve : cf. F. univalve .] (Zo\'94l.) A shell consisting of one valve only; a mollusk whose shell is composed of a single piece, as the snails and conchs.

&hand; Most univalves are spiral and are the shells of gastropods, but many belong to cephalopods and pteropods. A large number of univalves belonging to the gastropods are conical, cup-shaped, or shieldlike, as the limpets.

Univalve, Univalved <Xpage=1577>

U"ni*valve (?) , U"ni*valved (?) , a. [Cf. F. univalve .] (Bot. & Zo\'94l.) Having one valve; as, a univalve shell or pericarp .

Univalvia <Xpage=1577>

U`ni*val"vi*a (<?/) , n. pl. [NL.] (Zo\'94l.) Same as Gastropoda .

Univalvular <Xpage=1577>

U`ni*val"vu*lar (?) , a. (Bot. & Zo\'94l.) Same as Univalve , a.

Universal <Xpage=1577>

U`ni*ver"sal (?) , a. [L. universalis : cf. F. universel , OF. also universal . See Universe .] 1. Of or pertaining to the universe; extending to, including, or affecting, the whole number, quantity, or space; unlimited; general; all-reaching; all-pervading; as, universal ruin; universal good; universal benevolence or benefice. "Anointed universal King."

Milton.

The universal cause Acts not by partial, but by general laws. Pope.

This universal frame began. Dryden.

&hand; Universal and its derivatives are used in common discourse for general and its derivatives. See General .

2. Constituting or considered as a whole; total; entire; whole; as, the universal world .

Shak.

At which the universal host up dent A shout that tore Hell's concave. Milton.

3. (Mech.) Adapted or adaptable to all or to various uses, shapes, sizes, etc.; as, a universal milling machine .

4. (Logic) Forming the whole of a genus; relatively unlimited in extension; affirmed or denied of the whole of a subject; as, a universal proposition ; -- opposed to particular ; e. g. ( universal affirmative) All men are animals; ( universal negative) No men are omniscient.