Webster's Dictionary 1913

5104

Isoperimetrical

I′so‐per′i‐met″ric‐al (?), a. [Gr. �; � equal + � circumference: cf. F. isopérimètre. See Perimeter.] (Geom.) Having equal perimeters of circumferences; as, isoperimetrical figu...

5105

Isoperimetry

I′so‐per‐im″e‐try (?), n.(Geom.) The science of figures having equal perimeters or boundaries.

5106

Isopiestic

I′so‐pi‐es″tic (?), a. [Iso- + Gr. � to press.] (Thermodynamics) Having equal pressure.Isopiestic lines, lines showing, in a diagram, the relations of temperature and volume, wh...

5107

Isopleura

‖I′so‐pleu″ra (?), n. pl. [NL. See Iso-, and Pleura.] (Zoöl.) A subclass of Gastropoda, in which the body is symmetrical, the right and left sides being equal.☞ The intestine te...

5108

Isopod

I″so‐pod (?), a.(Zoöl.) Having the legs similar in structure; belonging to the Isopoda. — n. One of the Isopoda.

5109

Isopoda

‖I‐sop″o‐da (?), n. pl. [NL. See Iso-, and -poda.] (Zoöl.) An order of sessile-eyed Crustacea, usually having seven pairs of legs, which are all similar in structure.☞ The body ...

5110

Isopodiform

I′so‐pod″i‐form (?), a. [Isopod + -form.] (Zoöl.) Having the shape of an isopod; — said of the larvæ of certain insects.

5111

Isopodous

I‐sop″o‐dous (?), a. Same as Isopod.

5112

Isopogonous

I′so‐pog″o‐nous (?), a. [Iso- + Gr. � beard.] (Zoöl.) Having the two webs equal in breadth; — said of feathers.

5113

Isoprene

I″so‐prene (?), n.(Chem.) An oily, volatile hydrocarbon, obtained by the distillation of caoutchouc or gutta-percha.

5114

Isopycnic

I′so‐pyc″nic (?), a. [Iso- + Gr. πυκνόσ dense.] (Physics) Having equal density, as different regions of a medium; passing through points at which the density is equal; as, an is...

5115

Isopycnic (2)

I′so‐pyc″nic, n.(Physics) A line or surface passing through those points in a medium, at which the density is the same.

5116

Isorcin

I‐sor″cin (?), n. [Iso- + orcin.] (Chem.) A crystalline hydrocarbon derivative, metameric with orcin, but produced artificially; — called also cresorcin.

5117

Isorropic

I′sor‐rop″ic (?), a. [Gr. ισὄρροποσ in equipoise; ἴσοσ equal + ροπἥ downward inclination or momentum.] Of equal value.Isorropic line (in a diagram) (Geom.), the locus of all the...

5118

Isosceles

I‐sos″ce‐les (?), a. [L., fr. Gr. �; ἴσοσ equal + � leg.] (Geom.) Having two legs or sides that are equal; — said of a triangle.

5119

Isospondyli

‖I′so‐spon″dy‐li (?), n. pl. [NL., fr. Gr. ἴσοσ equal + �, �, a vertebra.] (Zoöl.) An extensive order of fishes, including the salmons, herrings, and many allied forms.

5120

Isospondylous

I′so‐spon″dy‐lous (?), a.(Zoöl.) Of or pertaining to the Isospondyli; having the anterior vertebræ separate and normal.

5121

Isospore

I″so‐spore (?), n.(Biol.) (a) One of the spores produced by an isosporous organism. (b) A zygospore.

5122

Isosporic

I′so‐spor″ic (?), a. [Iso- + Gr. � fruit.] (Bot.) Producing but one kind of spore, as the ferns and Equiseta. Cf. Heterosporic.

5123

Isosporous

I‐sos″po‐rous (?), a. [Iso- + Gr. � fruit.] (Biol.) Producing but one kind of spore, as the ferns.

5124

Isostasy

I‐sos″ta‐sy (?), n. [See Iso-; Stasis.] The state or quality of being isostatic. Specif. (Geol.), general equilibrium in the earth's crust, supposed to be maintained by the yiel...

5125

Isostatic

I′so‐stat″ic (?), a. [Iso- + static.] (Physics & Geol.) Subjected to equal pressure from every side; being in hydrostatic equilibrium, as a body submerged in a liquid at rest; p...

5126

Isostemonous

I′so‐stem″o‐nous (?), a. [Iso- + Gr. στήμων thread.] (Bot.) Having exactly as many stamens as petals.

5127

Isostemony

I′so‐stem″o‐ny (?), n.(Bot.) The quality or state of being isostemonous.

5128

Isosulphocyanate

I′so‐sul′pho‐cy″a‐nate (?), n.(Chem.) A salt of isosulphocyanic acid.

5129

Isosulphocyanic

I′so‐sul′pho‐cy‐an″ic (?), a.(Chem.) Pertaining to, or designating, an acid, HNCS, isomeric with sulphocyanic acid.

5130

Isotheral

I‐soth″er‐al (?), a. Having the nature of an isothere; indicating the distribution of temperature by means of an isothere; as, an isotheral chart or line.