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hetical radical C2H3, regarded as the characteristic residue of ethylene and that related series of unsaturated hydrocarbons with which the allyl compounds are homologous.

oyage, borne on winds. Milton. All the voyage of their life Is bound in shallows and in miseries. Shak.

n of the Cretaceous formation in England and on the Continent, which overlies the Oölitic series.

The series of barbs implanted on each side of the shaft of a feather, whether stiff and united together by barbules, as in ordinary feathers, or soft and separate, as in downy feathers. See Feather.

ssing the most probable relative value of each observation in determining the result of a series of observations of the same kind.

To make a kind of musical sound, or series of sounds, by forcing the breath through a small orifice formed by contracting the lips; also, to emit a similar sound, or series of notes, from the mouth or beak, as birds. The weary plowman leaves the task of day, And, trudging homeward, whistles on the way. Gay.…

iameter of wire, thickness of sheet metal, etc., often consisting of a metal plate with a series of notches of various widths in its edge. (b) A standard series of sizes arbitrarily indicated, as by numbers, to which the diameter of wire or the thickness of sheet metal in usually made, and which is used in describing t…

ion, which presents an object clearly to the mind, as if in a picture. -- Word square, a series of words so arranged that they can be read vertically and horizontally with like results.

horseman holds the bridle. -- Wrist clonus. Etym: [NL. clonus, fr. Gr. Clonic.] (Med.) A series of quickly alternating movements of flexion and extension of the wrist, produced in some cases of nervous disease by suddenly bending the hand back upon the forearm. -- Wrist drop (Med.), paralysis of the extensor muscles…

A liquid hydrocarbon of the terpene series extracted from the seeds of a Japanese prickly ash (Xanthoxylum pipertium) as an aromatic oil.

Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit. They are colorless, oily, inflammable liquids, C6H4.(CH3)2, being dimethyl benzenes, and are called respectively orthoxylene, metaxylene, and paraxylene. Called also xylol.…

An instrument common among the Russians, Poles, and Tartars, consisting of a series of strips of wood or glass graduated in length to the musical scale, resting on belts of straw, and struck with two small hammers. Called in Germany strohfiedel, or straw fiddle.

A molding running in a zigzag line; a chevron, or series of chevrons. See Illust. of Chevron, 3.

een of great importance in the synthesis of organic compounds, and is the type of a large series of similar compounds, as zinc ethyl, zinc amyle, etc. -- Zinc oxide (Chem.), the oxide of zinc, ZnO, forming a light fluffy sublimate when zinc is burned; -- called also flowers of zinc, philosopher's wool, nihil album, et…

viewed through slits in its circumference, appear like a single figure passing through a series of natural motions as if animated or mechanically moved.

A series of planes having mutually parallel intersections.