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of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate. Claus & Sedgwick.

anders. -- Horse purslain (Bot.), a coarse fleshy weed of tropical America (Trianthema monogymnum). -- Horse race, a race by horses; a match of horses in running or trotting. -- Horse racing, the practice of racing with horses. -- Horse railroad, a railroad on which the cars are drawn by horses; -- in England, and…

A biennial weed (Cynoglossum officinale), with soft tongue- shaped leaves, and an offensive odor. It bears nutlets covered with barbed or hooked prickles. Called also dog's-tongue.

Pertaining to, or derived from the combination of, hydrogen and cyanogen. Hydrocyanic acid (Chem.), a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocya…

nd of hydrocyanic acid with a base; -- distinguished from a cyanide, in which only the cyanogen so combines.

Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen; as, hydroferricyanic acid. See Ferricyanic.

Pertaining to, or containing, or obtained from, hydrogen, ferrous iron, and cyanogen; as, hydroferrocyanic acid. See Ferrocyanic.

The discussion or description of portraiture or of representative images. Cf. Iconography.

A student, or lover of the study, of iconography.

A combined animated-picture machine and phonograph in which sounds appropriate to the scene are automatically uttered by the latter instrument.

A machine combining a kinetoscope and a phonograph synchronized so as to reproduce a scene and its accompanying sounds.

ng a silk banner hanging from a crosspiece, and surmounted by a golden crown. It bore a monogram of the first two letters (CHR) of the name of Christ in its Greek form. Later, the name was given to various modifications of this standard.

as to resemble latticework. A second species is O. Berneriana. The genus is merged in Aponogeton by recent authors.

A word letter; a phonogram, that, for the sake of brevity, represents a word; as, |, i. e., t, for it. Cf. Grammalogue.

The British smooth sole, or scaldfish (Psetta arnoglossa).

A strong nitrogenous base, C3H6N6, produced from several cyanogen compounds, and obtained as a white crystalline substance, -- formerly supposed to be produced by the decomposition of melam. Called also cyanuramide.

A complex nitrogenous hydrocarbon obtained artificially (as by the action of cyanogen chloride on aniline) as a white, crystalline substance; -- called also diphenyl guanidin.

nonsexual means, either directly or through intervening sexless generations. Opposed to monogenesis. See Alternate generation, under Generation.

See Monogenesis, 1.

Inducing or stimulating the secretion of mucus; blennogenous.