Webster's Dictionary 1913

4699

Ion

I″on (ī″ŏn), n. [Gr. ιὄν, neut, of ιὤν, p. pr. of ιἔναι to go.] (Elec. Chem.) One of the elements which appear at the respective poles when a body is subjected to electro-chemic...

4700

Ion (2)

I″on, n. 1. One of the electrified particles into which, according to the electrolytic dissociation theory, the molecules of electrolytes are divided by water and other solvents...

4701

Ionian

I‐o″ni‐an (?), a. [L. Ionius. See Ionic.] Of or pertaining to Ionia or the Ionians; Ionic. — n. A native or citizen of Ionia.

4702

Ionic

I‐on″ic (?), a. [L. Ionicus, Gr. �, fr. � Ionia.]1. Of or pertaining to Ionia or the Ionians.2. (Arch.) Pertaining to the Ionic order of architecture, one of the three orders in...

4703

Ionic (2)

I‐on″ic, n. 1. (Pros.) (a) A foot consisting of four syllables: either two long and two short, — that is, a spondee and a pyrrhic, in which case it is called the greater Ionic; ...

4704

Ionidium

‖I′o‐nid″i‐um (?), n. [NL. Cf. Iodine.] (Bot.) A genus of violaceous plants, chiefly found in tropical America, some species of which are used as substitutes for ipecacuanha.

4705

Ionize

I″on‐ize (?), v. t. [imp. & p. p.Ionized (?); p. pr. & vb. n.Ionizing (?).] (Elec. Chem.) To separate (a compound) into ions, esp. by dissolving in water. — I′on‐i‐za″tion (#), n.

4706

Ioqua shell

I″o‐qua shell′ (?). (Zoöl.) The shell of a large Dentalium (D. pretiosum), formerly used as shell money, and for ornaments, by the Indians of the west coast of North America.

4707

Iota

I‐o″ta (?), n. [L., fr. Gr. ιὠ̑τα. See Jot.]1. The ninth letter of the Greek alphabet (ι) corresponding with the English i.2. A very small quantity or degree; a jot; a particle....

4708

Iotacism

I‐o″ta‐cism (ī̍‐ō″tȧ‐sĭz'm), n. [Gr. ιοτακισμὄσ a laying too much stress upon the iota (ι): cf. F. iotacisme. See Iota.] The frequent use of the sound of iota (that of English e...

4709

Iowas

I″o‐was (?), n. pl.; sing. Iowa. (Ethnol.) A tribe of Indians which formerly occupied the region now included in the State of Iowa.

4710

Ipecac

Ip″e‐cac (ĭp″ē̍‐kăk), n. An abbreviation of Ipecacuanha, and in more frequent use.

4711

Ipecacuanha

Ip′e‐cac′u‐an″ha (ĭp′ē̍‐kăk′ū̍‐ăn″ȧ), n. [Pg. ipecacuanha (cf. Sp. ipecacuana); fr. Braz. ipe-kaa-guena, prop., a creeping plant that causes vomiting.] (Med. & Bot.) The root of...

4712

Ipocras

Ip″o‐cras (?), n. Hippocras. Chaucer.

4713

Ipomœa

‖Ip′o‐mœ″a (ĭp′ō̍‐mē″ȧ), n. [NL. “Named, according to Linnæus, from Gr. ἴψ, ιπὄσ, a bindweed, and ὅμοιοσ like.” Gray.] (Bot.) A genus of twining plants with showy monopetalous f...

4714

Ipomœic

Ip′o‐mœ″ic (?), a.(Chem.) Pertaining to, or designating, an acid obtained by the oxidation of convolvulin (obtained from jalap, the tubers of Ipomœa purga), and identical in mos...

4715

Ir-

Ir– (?). A form of the prefix in-. See In-.

4716

Iracund

I″ra‐cund (?), a. [L. iracundus, fr. ira anger.] Irascible; choleric. “Iracund people.” Carlyle.

4717

Irade

I‐ra″de (ē̍‐rä″dā̍), n. A decree of the Sultan.

4718

Iran

I′ran″ (ē′rän″), n. [Mod. Persian Irān. Cf. Aryan.] The native name of Persia.

4719

Iranian

I‐ra″ni‐an (?), a. Of or pertaining to Iran. — n. A native of Iran; also, the Iranian or Persian language, a division of the Aryan family of languages.

4720

Iranic

I‐ran″ic (?), a. Iranian.

4721

Irascibility

I‐ras′ci‐bil″i‐ty (?), n. [Cf. F. irascibilité.] The quality or state of being irascible; irritability of temper; irascibleness.

4722

Irascible

I‐ras″ci‐ble (?), a. [L. irascibilis, fr. irasci to be angry, ira anger: cf. F. irascible. See Ire.] Prone to anger; easily provoked or inflamed to anger; choleric; irritable; a...

4723

Irate

I‐rate″ (?), a. [L. iratus, fr. irasci to be angry. See Ire.] Angry; incensed; enraged.The irate colonel... stood speechless. Thackeray.Mr. Jaggers suddenly became most irate. D...

4724

Ire

Ire (?), n. [F., fr. L. ira.] Anger; wrath.Syn. — Anger; passion; rage; fury. See Anger.

4725

Ireful

Ire″ful (?), a. Full of ire; angry; wroth. “The ireful bastard Orleans.” Shak. — Ire″ful‐ly, adv.