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resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket. Blue jacket. (Naut.) See under Blue. -- Steam jacket, a space filled with steam between an inner and an outer cylinder, or between a casing and a receptacle, as a kettle. -- To dust one's jacket, to give one a beating. […

Wearing, or furnished with, a jacket.

The material of a jacket; as, nonconducting jacketing.

A jacket having air-tight cells, or cavities which can be filled with air, to render persons buoyant in swimming.

A warm jacket of knit worsted with or without sleeves.

A kind of loose-fitting plaited jacket, having a loose belt.

A thick loose woolen jacket, or coat, much worn by sailors in cold weather.

A dress of strong materials for restraining maniacs or those who are violently delirious. It has long sleeves, which are closed at the ends, confining the hands, and may be tied behind the back.

e or supply of heat to the vessel. Used in laboratory and manufacturing equipment. water- jacketed. Having a water jacket; -- as, a water-jacketed condenser.

A stuffed jacket worn under the mail, or (later) a jacket plated with mail. [Spelled also hacqueton.] [Obs.] Halliwell. Sir W. Scott.

A part of a lady's dress, resembling a jacket with a short skirt; -- probably so called because this fashion of dress came from the Basques.

To lay on or cover; to adorn. [Obs.] Jacket . . . belayed with silver lace. Spenser.

ul. See Eucalyptus. -- Blue jack, Blue stone, blue vitriol; sulphate of copper. -- Blue jacket, a man-of war's man; a sailor wearing a naval uniform. -- Blue jaundice. See under Jaundice. -- Blue laws, a name first used in the eighteenth century to describe certain supposititious laws of extreme rigor reported to h…

A garment worn by men, covering the hips and thighs; smallclothes. His jacket was red, and his breeches were blue. Coleridge.

A short dressing jacket for women.

A jacket or outer covering of wood, etc., to prevent radiation of heat, as from the boiler, cylinder. etc., of a steam engine.

olors or color of a ship or regiment; the colors of a race horse (that is, of the cap and jacket worn by the jockey). In the United States each regiment of infantry and artillery has two colors, one national and one regimental. Farrow.

long and narrow. [U. S.] The American schoolboy takes off his comforter and unbuttons his jacket before going in for a snowball fight. Pop. Sci. Monthly.

nvelope of soft metal. In small arms the modern projectile, having a soft core and harder jacket, is subjected to compression throughout the entire cylindrical part.

To reduce to a fine powder; to levigate. Sprat. To dyst one's jacket, to give one a flogging. [Slang.]