Isoseismal, ī-sō-sīs′mal, n. a curve or line connecting points at which an earthquake shock is felt with equal intensity.—adjs. Isoseis′mal, Isoseis′mic. [Gr. isos, equal, seismos, a shaking.]
Isostatic, ī-so-stat′ik, adj. in hydrostatic equilibrium from equality of pressure. [Gr. isos, equal, statikos, stable.]
Isotheral, ī′so-thēr-al, adj. having the same mean summer temperature.—n. I′sothēre, an imaginary line connecting places on the earth which have the same mean summer temperature. [Gr. isos, equal, theros, summer—therein, to be warm.]
Isothermal, ī-so-thėr′mal, adj. having an equal degree of heat.—n. I′sotherm, an imaginary line connecting places on the earth which have the same mean annual temperature. [Fr. isotherme—Gr. isos, equal, thermē, heat—thermos, hot.]
Isotonic, ī-so-ton′ik, adj. having equal tones. [Gr. isos, equal, tonos, tone.]
Isotropism, ī-sot′rop-izm, n. physical homogeneity or amorphism: identity of elastic forces of propagation of vibration (light, heat, sound), or identity of susceptibility to magnetisation, in all directions.—adjs. Isotrop′ic, Isot′ropous.
I-spy, ī′-spī′, n. a children's game of hide-and-seek, so called from the cry when one is found.
Israelite, iz′ra-el-īt, n. a descendant of Israel or Jacob: a Jew.—adjs. Israelit′ic, Israelīt′ish, pertaining to the Israelites or Jews. [Gr. Israēlitēs—Israēl, Heb. Israēl, contender, soldier of God—sara, to fight, El, God.]
Issue, ish′ū, v.i. to go, flow, or come out: to proceed, as from a source: to spring: to be produced: (law) to come to a point in fact or law: to terminate.—v.t. to send out: to put into circulation: to give out for use.—n. a going or flowing out: act of sending out: that which flows or passes out: fruit of the body, children: produce, profits: circulation, as of bank-notes: publication, as of a book: a giving out for use: ultimate result, consequence: (law) the point of fact in dispute which is submitted to a jury: (med.) an ulcer produced artificially.—adj. Iss′uable, capable of issuing, admitting of an issue.—n. Iss′uance, act of giving out, promulgation.—adjs. Iss′uant (her.), issuing or coming up from another, as a charge or bearing; Iss′ueless, without issue: childless.—n. Iss′uer, one who issues or emits.—At issue, in quarrel or controversy; Feigned issue (law), an issue made up for trial by agreement of the parties or by an order of court, instead of by the ordinary legal procedure; General issue, a simple denial of the whole charge, as 'Not guilty,' instead of a Special issue, an issue taken by denying a particular part of the allegations; Immaterial issue, an issue which is not decisive of any part of the litigation, as opp. to a Material issue, one which necessarily involves some part of the rights in controversy.—Join, or Take, issue, of the two parties taking up the affirmative and the negative on the point in debate. [O. Fr. issuë, issir, to go or flow out—L. exīre—ex, out, īre, to go.]
Isthmus, ist′mus, n. a narrow neck of land connecting two larger portions.—adj. Isth′mian, pertaining to an isthmus, esp. the Isthmus of Corinth.—The Isthmian games were celebrated in the Isthmian sanctuary on the north-east shore of the isthmus. [L.,—Gr. isthmos, a passage, an isthmus, allied to ithma, a step, from root of ienai, to go.]