Search the Dictionary

A special class of small yachts developed in Germany under the patronage of Emperor William and Prince Henry of Prussia, and so called because these yachts do not conform to the restrictions for the regular classes established by the rules of the International Yacht Racing Union. In yachts of the sonderclass, as prescr…

A small telescope for viewing distant terrestrial objects.

A glass vessel, usually cylindrical, filled with a solution which is sensitive to atmospheric changes, indicating by a clouded appearance, rain, snow, etc., and by clearness, fair weather.

One of the natural groups, more important than an order, into which some classes are divided; as, the angiospermous subclass of exogens.

A convex lens of glass for producing heat by converging the sun's rays into a focus. "Lighting a cigar with a sunglass." Hawthorne.

Any sea tortoise.

Of or pertaining to the sea; -- sometimes applied to rocks formed from sediments deposited upon the sea bottom.

Any species of Thalaassinidæ, a family of burrowing macrurous Crustacea, having a long and soft abdomen.

The study or science of the life of marine organisms. Agassiz.

See Soluble glass, under Glass.

c pressure, and hence changes of weather, as a barometer or baroscope. Poor man's weatherglass. (Bot.) See under Poor.

imilar means, so as to wind up a rope or chain attached to the weight. In vessels the windlass is often used instead of the capstan for raising the anchor. It is usually set upon the forecastle, and is worked by hand or steam.

A small glass from to drink wine.

As much as a wineglass will hold; enough to fill a wineglass. It is usually reckoned at two fluid ounces, or four tablespoonfuls.

A small tile of glass, marble, or other substance, of various colors, used in making ornamental patterns in mosaic pavements. Fairholt.

One of a class of bishops whose sees were formerly abbeys. Encyc. Brit. Abbot of the people. a title formerly given to one of the chief magistrates in Genoa. -- Abbot of Misrule (or Lord of Misrule), in mediæval times, the master of revels, as at Christmas; in Scotland called the Abbot of Unreason. Encyc. Brit.…

A material used for grinding, as emery, sand, powdered glass, etc.

Belonging to an academy or other higher institution of learning; scholarly; literary or classical, in distinction from scientific. "Academic courses." Warburton. "Academical study." Berkeley.

A class of levelers in the time of K. Henry I.

ave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecomposed. -- Achromatic prism. See Prism. -- Achromatic telescope, or mi…