unipartite 
Unipartite curve, a curve whose real part forms one 
continuous whole (it being understood that a passage 
through infinity does nut constitute a severing of the 
curve). 
uniped (ii'ni-ped), a. and n. [< L. units, one, 
+ pes (l>ed-), foot.] I. a. Having only one 
foot. 
II. w. One who or that which is one-footed. 
Compare monopode. [Rare.] 
One of the hest gymnasts in Chicago is a person with a 
wooden leg, which he takes off at the beginning of oper- 
ations, thus economizing weight and stowage, and per- 
forming feats impossible except to unipeds. 
W. Mathews, Getting on in the World, p. 194. 
Unipeltatat (u^ni-pel-ta'ta), n. pi. [NL. (La- 
treille), neut. pi. ofitnipelfatiis : see unipeltate.'] 
In Crustacea, a division of stomatopods, con- 
taining adult forms of mantis-shrimps: distin- 
guished from Bipeltata. See Squilla. 
unipeltate (u-ni-pel'tat), . and . [< L. iimis, 
one, + peUa, a light shield : see peltate.'] I. a. 
Having a carapace of one piece, as a crusta- 
cean; not bipeltate, like a glass-crab; stoina- 
topodous, as a mantis-shrimp. 
II. n. A member of the Unipeltata. See 
Squittidee. 
unipersonal (u-ni-per'son-al), a. [< L. wins, 
one, + persona, person: see "personal.'] 1. Hay- 
ing but one person ; existing in one person : said 
of the Deity. 2. In gram., used only in one 
person : chiefly noting verbs used only in the 
third person singular ; impersonal. 
unipersonalist (u-ni-per'son-al-ist), . [< w- 
personal + -ist.] One wno believes there is 
but one person in the Deity. 
unipersonality (u-ni-per-so-nal'i-ti), n. [< uni- 
personal + -ity.] Existence in one person only. 
unipetaloUS (u-ni-pet'a-lus), a. [< L. untts, 
one, + NL. petaliim, petal: see petal.] Having 
but one petal. 
Such a corolla [consisting of one petal on account of 
abortion of the others] is unipetaloux, a term quite dis- 
tinct from monopetalous. Encyc. Brit., IV. 132. 
uniphonous (u'ni-fo-iius), a. [< L. iinus, one, 
+ 6r. <j>uvrt, a sound.] Having or giving out 
only one sound; monophonic. [Rare.] 
That uniphonous instrument the drum. 
Westminster Men., Nov., 1882. (Encyc. Diet.) 
uniplanar (u-ni-pla'nar), a. [< L. urnts, one, + 
planum, plane.] Lying in one plane. 
The first three chapters of the work deal with the usual 
problems of hydrodynamics, being occupied principally 
with those in which the motion is uniplanar or can be 
expressed by two co-ordinates. 
The Academy, April 11, 1891, p. 349. 
Uniplanar dyadic. See dyadic. Uniplanar node, a 
degenerate form of a node or conical point on a surface, 
where the cone degenerates into two coincident planes: 
same as unode. 
uniplicate (u-uip'li-kat), . [< L. unus, one, + 
plicatus, pp. oiplicare, fold : see plicate.] Once 
folded ; having or forming a single fold. Com- 
pare duplicate, triplicate, quadruplicate. 
unipolar (u-ni-po'lar), a. [< L. unus, one, + 
polus, pole: seej;ofar.] 1. Exhibiting one kind 
of polarity. 
The so-called "unipolar" induction supposed to be 
due to the rotation of the earth, which behaves like a 
gigantic magnet. P. G. Tail, Encyc. Brit., XXIII. 330. 
2. In Tiiol., having a single pole, as a nerve-cell 
or a rete : correlated with bipolar, multipolar. 
If the rete remains broken up, then it is known as a 
diffuse, unipolar, or monocentric rete mirabile. 
Qegenbaur, Comp. Anat. (trans.), p. 597. 
Unipolar conduction. Same as irreciprocal conduction 
(which see, under irreciprocal). Unipolar dynamo, a 
dynamo in which an electromotive force is induced in a 
conductor by causing it to revolve round one pole of a 
magnet. 
unipolarity(u // ni-po-lar'i-ti),)i. [< unipolar + 
-ity.~] The character of being unipolar. 
We do not believe that Ohm ever observed the phenom- 
enon of unipolarity in strong sulphuric ficid with elec- 
trodes of platinum or gold due to a transition resistance 
PMlos. Hay., XXVI. 129. 
uniporous (u-nip'o-rus), a. [< L. unus, one, + 
poms, pore.] Having one pore. 
Wood-cells elsewhere called discigerous tissue, and to 
which I applied the terms uniporous and multiporous. 
Dawson, Geol. Hist, of Plants, p. 160. 
unique (u-neV), a. andw. [< F. unique = Sp. Pg. 
It. unico, < L. unieus, one, only, single, < unus, 
one.] I. a. 1. Only; single. 
Do I mention these seeming inconsistencies to smile at 
or upbraid my unique cousin 1 Lamb, My Relations. 
2. Having no like or equal; unmatched; sole; 
unequaled ; single in its kind or excellence : of- 
ten used relatively, and then signifying rare, 
unusual. 
That which gives to the Jews their unique position 
among the nations is what we are accustomed to regard 
as their Sacred History. Spectator, No. 3035, p. 1159. 
6620 
II. . A unique thing; a thing unparalleled 
or sole of its kind. 
Sir Charles Mordant's gold medal, mean as it is in work- 
manship, is extremely curious, and may be termed an Unic, 
being the only one of the kind that has come to our know- 
ledge. Archfeolofjia (1774), III. 374. 
Where is the master who could have instructed Frank- 
lin, or Washington, or Bacon, or Newton? Every great 
man is a unique. Emerson, Self-reliance. 
uniquely (u-nek'li), adv. In a unique manner ; 
so as to be unique. 
uniqueness (u-nek'nes), n. The state or char- 
acter of being unique. 
uniquity (u-ne'kwi-ti), . [Irreg. < unique + 
-ity.] Uniqueness" [Rare.] 
Uniquity will make them valued more. 
U. Walpole, Letters, iv. 477 (1789). (Daffies.) 
uniradiate (u-ni-ra'di-at), a. [< L. unus, one, 
+ radius, ray: see radiate.] Having only one 
ray, arm, or process ; monactinal. 
uniradiated (u-ni-ra'di-a-ted), a. Same as 
uniradiate. 
uniramose (u-ni-ra'mos), a. Same as unira- 
motis. Micros. Sci., XXX. 109. 
uniramous (u-ni-ra'mus), a. [< L. unus, one, 
+ ramus, branch: see ramus.'] Having but 
one ramus or branch. See biramous. Encyc. 
Brit., VI. 652. 
unisepalous (u-ni-sep'a-lus), a. [< L. unus, 
one, + NL. sepalum, sepal: see sepal.'] Hav- 
ing but one sepal. 
uniseptate (u-ni-sep'tat), . [< L. unus, one, 
+ septum, partition: see septate.'] In zoiil. and 
lot., having only one septum or partition. 
Uniserial (u-ni-se'ri-al), a. [< L. unus, one, + 
series, series: see serial,'] 1. Set in one row 
or series ; one-ranked ; unif arious. Encyc. Brit. , 
XXII. 190. 2. Beset with one rank, row, or 
series of things. 
Uniserially (u-ni-se'ri-al-i), adv. So as to be 
xiniserial ; in one series. 
uniseriate (u-ni-se'ri-at), a. [< L. unus, one, 
+ series, series: see seriate.'] Same as unise- 
rial. 
uniseriately (u-ni-se'ri-at-li), adv. Same as 
uniserially. 
uniserrate (u-ni-ser'at), . [< L. unus, one, 
+ serra, saw: see serrate.'] Having one row 
of teeth or serrations ; uniserially serrate. 
uniserrulate (u-ni-ser'o-lat), a. [< L. unus, 
one, + serrula, dim. of serra, saw: see serru- 
late.'] Having one row of small serrations; 
uniserially serrulate. 
unisexual (u-ni-sek'su-al), a. [< L. unus, one, 
+ sexus, sex: see sexual. ] 1. Of one sex that 
is, having the two sexes developed in different 
individuals. [Rare.] 2. For or consisting of 
a single sex. [Rare.] 
One final provincialism of the mind there is, which a 
unisexual college certainly never would have any power 
to eradicate. ... It is the provincialism of the exclu- 
sively sex point of view itself. The Century, XXXII. 326. 
3. Specifieallyj in entom., having only female in- 
dividuals: noting the agamic broods of Aphidi- 
dx and some other insects which, during cer- 
tain parts of the year, continue to propagate the 
species without any males. See partlienogene- 
sis. 4. In bot., said of a flower containing the 
organs of but one sex, stamens or pistil, but 
not both; diclinous: opposed to bisexual or her- 
maphrodite ; monoecious or dioecious. It is also 
applicable to an inflorescence or a plant with 
such flowers only. 
unisexuality (u-ni-sek-su-al'i-ti), n. [< uni- 
sexual H- ity.'] The state or character of being 
unisexual, or of having but one sex, as a male 
or female individual : the opposite of hermaph- 
roditism. 
There is some reason to suspect that hermaphrodism 
was the primitive condition of the sexual apparatus, and 
that unisexuality is the result of the abortion of the or- 
gans of the other sex in males and females respectively. 
Huxley, Anat Invert., p. 67. 
unisexually (u-ni-sek'su-al-i), adv. So as to be 
of either sex, but not of both sexes, in one in- 
dividual : as, animals unisexually developed. 
unisilicate (u-ni-sil'i-kat), n. [< L. unus, one, 
+ E. silicate.'] A salt of orthosilicic acid 
(H 4 SiO4) : so called because the ratio of oxy- 
gen atoms combined with the base to those 
combined with the silicon is 1 : 1 . This is illus- 
trated by zinc unisilicate, willemite, which has 
the formula Zn ? SiO 4 or 2ZnO.SiO i >. 
unisolated (un-is'o-la-ted), a. Not isolated or 
separated; undistinguished or undistinguish- 
able. 
The unisulateii hyoid muscles of the frog. 
Jour. Roy. Micros. Soc., 2d ser., VI. 47. 
unit 
Unison (u'ni-son or -zon), (i. and n. [I. a. Also 
unisonous, q. v. ; = Sp. unisono = Pg. unisono, 
< ML. ?tiisHs,havingone sound, < L. tin us, one, 
+ sonus, sound : see sound 5 . II. n. Early mod. 
E. nnisonne, < F. unisson = Sp. unison = It. - 
sono, unison, concord of sounds: from the adj.] 
1. a. 1. Sounding alone ; unisonous. 
All sounds on fret by string or golden wire, 
Temper'd soft tunings, intermix'd with voice, 
Choral or unison. Milton, P. L., vii. 599. 
2. In music, sounded simultaneously; specifi- 
cally, noting two or more voice-parts that are 
coincident in pitch, or a passage or effect thus 
produced Unison String, In musical instruments with 
strings, a string tuned in unison with another string, and 
intended to be sounded with it. In the pianoforte most 
of the tones are produced from pairs or triplets of strings 
thus tuned. Such strings are commonly called uniiont. 
II. n. 1. In music: (a) The interval, melodic 
or harmonic, between any tone and a tone of ex- 
actly the same pitch; a perfect prime, acous- 
tically represented by the ratio 1:1. The term 
is also used as a synonym of prime (as, an aug- 
mented unison), though this is objectionable. 
(6) The interval of the octave, especially when 
occiirring between male and female voices, or 
between higher and lower instruments of the 
same class. 2. The state of sounding at the 
same pitch that is, of being at the interval of 
a unison. 
" But he wants a shoe, poor creature! " said Obadiah. 
" Poor creature ! " said my uncle Joby, vibrating the note 
back again, like a string in unison. 
Sterne, Tristram Shandy, V. ii. 
3. A single unvaried tone ; a monotone. Pope. 
4. Same as unison string. 5. Accordance; 
agreement; harmony; concord. 
He chants his prophetic song in exact unison with their 
designs. Burke, Rev. in France, xvi. 
I had the good fortune to act in perfect unison with my 
colleague. D. Webster, Speech, Boston, June 5, 1828. 
unisonal (u'ni-so-nal), a. [< unison + -/.] Be- 
ing in unison ; unisoiiant. 
We missed . . . the magnificent body of tone in the 
broad unisonal passages in the finale. 
Atlieneeum, No. 3082, p. 678. 
unisonally (u'ni-so-nal-i), adv. In a unisonal 
manner; in unison. 
Tenors and basses burst in unisonally. 
Church Times, March 4, 1887. (Encyc. Diet.) 
unisonance (u'ni-so-nans), n. [= Sp. Pg. '- 
sonancia; as unisonan(t) + -ce.] Accordance 
of sounds ; unison. 
unisonant (u'ni-so-nant), a. [=OF. unisonnant, 
< L. unus, one, + sonan(t-)s, ppr. of sonare, 
sound; cf. unison.'] Being in unison; having 
the same degree of gravity or acuteness. 
Whether the order of those sounds was ascending, de- 
scending, or unifsonant. 
Lamlrillotte, tr. in N. and Q., 7th ser., VII. 161. 
unisonous (u'ni-so-nus), a. [< ML. unisonus, 
having one sound: see unison.'] 1. Being in 
unison: said of two or more sounds having the 
same pitch ; unisonant. Grore, Diet. Music, II. 
763. 2. Sounding alone ; without harmony. 
These apt notes were about forty tunes, of one part 
only, and in one unisonous key. 
T. Wartm, Hist. Eng. Poetry, III. 171. 
unispiral (u-ni-spi'ral), a. In bot., having a sin- 
gle spiral, as the elaters of certain liverworts. 
unisilicate (u-ni-sul'kat), a. In bot. and zool., 
having a single groove or furrow; one-grooved. 
unit (u'nit), . [Formerly unite, a later form of 
unity : see unity.'] 1. A single thing or person, 
opposed to a plurality ; also, any group regard- 
ed as individual in a plurality of similar groups ; 
any one of the individuals or similar groups 
into which a complex whole may be analyzed. 
When first, amid the general discredit of the experiment 
tried^ by Lord Corn wall is in Bengal proper, the Indian 
administrators of fifty or sixty years since began to rec- 
ognize the village community as the true proprietary 
unit of the country, they had very soon to face the prob- 
lem of rent. Maine, Village Communities, p. 182. 
The family is the integral and formative unit of the 
nation. E. Mutford, The Nation, xii. 
The elementary tissues, particularly tracheary, sieve, 
fibrous, and parcnchymatous tissues, are to be considered 
as the units, and the term Fibro-vascular Bundle as little 
more than a convenient expression of the usual condition 
of aggregation of these units. Beisey, Botany, p. 107. 
These columns are not fighting units at all, but supply- 
units, and may be classed with commissariat trains and 
services of like nature. Fortnir/ntly Rev., N. S., XLI. 805. 
2. Auy standard quantity by the repetition and 
subdivision of which any other quantity of the 
same kind is measured. The unit of abstract arith- 
metic, called unity, is represented by the numeral 1. The 
system of unit'- recommended by a committee of the 
British Association for scientific calculations, and known 
as the C. 0. S. system (abbreviation of centimeter-gram- 
