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A name given to any one of several yellow or scarlet dyestuffs of artificial production and complex structure. In general they are diazo and sulphonic acid derivatives of benzene and naphthol.

A vacuum tube in which the exhaustion is carried to a very high degree, with the production of a distinct class of effects; -- so called from W. Crookes who introduced it.

Pertaining to the production of crystals; crystal-producing; as, crystallogenic attraction.

The science which pertains to the production of crystals.

cultivating; improvement for agricultural purposes or by agricultural processes; tillage; production by tillage.

assumed by Protozoa inwhich they become saclike and quiescent. It generally precedes the production of germs. See Encystment.

Cell production or development; cytogenesis.

That department of farming which is concerned in the production of milk, and its conversion into butter and cheese. Grounds were turned much in England either to feeding or dairy; and this advanced the trade of English butter. Temple.

The gradual formation or production of organs or parts by a process of evolution or development, as when the seed develops the root and the stem, the initial stem develops the leaf, branches, and flower buds; or in animal life, when the germ evolves the digestive and other organs and members, or when the animals as the…

Sexually reproductive. Digenous reproduction. (Biol.) Same as Digenesis.

A red crystalline nitrogenous substance or artificial production, which by reduction passes directly to indigo.

or effects are seized for debt; process for enforcing the attendance of witnesses or the production of writings. To do one's diligence, give diligence, use diligence, to exert one's self; to make interested and earnest endeavor. And each of them doth all his diligence To do unto the festé reverence. Chaucer.…

es; sport; play; pastime; as, the diversions of youth. "Public diversions." V. Knox. Such productions of wit and humor as expose vice and folly, furnish useful diversion to readers. Addison.

A colorless, crystalline, aromatic hydrocarbon, C6H2(CH3)4, off artificial production, with an odor like camphor.

Of or pertaining to dynamics; belonging to energy or power; characterized by energy or production of force. Science, as well as history, has its past to show, -- a past indeed, much larger; but its immensity is dynamic, not divine. J. Martineau. The vowel is produced by phonetic, not by dynamic, causes. J. Peile.…

To discolor by the production of an ecchymosis, or effusion of blood, beneath the skin; -- chiefly used in the passive form; as, the parts were much ecchymosed.

ment and management of the internal affairs of a state or of any establishment kept up by production and consumption; esp., such management as directly concerns wealth; as, political economy.

Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting disease; the efficacy of prayer. "Of noxious efficacy." Milton.

A solid hydrocarbon, C20H42, of the paraffine series, of artificial production, and also probably occurring in petroleum.

The occurrence or production of certain capillary effects by the action of an electrical current or charge.