Part 18

Uncertain if by augury or chance.

Dryden.

She doubts if two and two make four.

Prior.

As if, But if. See under As, But.

I' faith" (?). In faith; indeed; truly. Shak.

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I*fere" (?), a. [Corrupted fr. in fere.] Together. [Obs.] Chaucer.

Ig`a*su"ric (?), a. [See Igasurine.] (Chem.) Pertaining to, or obtained from, nux vomica or St. Ignatius's bean; as, igasuric acid.

Ig`a*su"rine (?), n. [Malay igasura the nux vomica.] (Chem.) An alkaloid found in nux vomica, and extracted as a white crystalline substance.

Ig"loo (?), n. 1. An Eskimo snow house.

2. (Zoöl.) A cavity, or excavation, made in the snow by a seal, over its breathing hole in the ice.

Ig*na"tius bean` (?). (Bot.) See Saint Ignatius's bean, under Saint.

Ig"ne*ous (?), a. [L. igneus, fr. ignis fire; allied to Skr. agni, Lith. ugnis, OSlav. ogne.] 1. Pertaining to, having the nature of, fire; containing fire; resembling fire; as, an igneous appearance.

2. (Geol.) Resulting from, or produced by, the action of fire; as, lavas and basalt are igneous rocks.

Ig*nes"cent (?), a. [L. ignescens, p. pr. of ignescere to become inflamed, fr. ignis fire: cf. F. ignescent.] Emitting sparks of fire when struck with steel; scintillating; as, ignescent stones.

Ig*nic"o*list (?), n. [L. ignis fire + colere to worship.] A worshiper of fire. [R.]

Ig*nif"er*ous (?), a. [L. ignifer; ignis fire + ferre to bear.] Producing fire. [R.] Blount.

Ig*nif"lu*ous (?), a. [L. ignifluus; ignis fire + fluere to flow.] Flowing with fire. [Obs.] Cockerman.

Ig"ni*fy (?), v. t. [imp. & p. p. Ignified (?); p. pr. & vb. n. Ignifying (?).] [L. ignis fire + -fy.] To form into fire. [R.] Stukeley.

Ig*nig"e*nous (?), a. [L. ignigenus; ignis fire + genere, ginere, to beget, produce.] Produced by the action of fire, as lava. [R.]

Ig*nip"o*tence (?), n. Power over fire. [R.]

Ig*nip"o*tent (?), a. [L. ignipotens; ignis fire + potens powerful.] Presiding over fire; also, fiery.

Vulcan is called the powerful ignipotent.

Pope.

||Ig"nis fat"u*us (?); pl. Ignes fatui (#). [L. ignis fire + fatuus ||foolish. So called in allusion to its tendency to mislead travelers.] ||1. A phosphorescent light that appears, in the night, over marshy ||ground, supposed to be occasioned by the decomposition of animal or ||vegetable substances, or by some inflammable gas; -- popularly called ||also Will-with-the-wisp, or Will-o'-the-wisp, and ||Jack-with-a-lantern, or Jack-o'-lantern. || 2. Fig.: A misleading influence; a decoy.

Scared and guided by the ignis fatuus of popular superstition.

Jer. Taylor.