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ng in working into a face of coal. Shearing machine. (a) A machine with blades, or rotary disks, for dividing plates or bars of metal. (b) A machine for shearing cloth.

In lichens, a Hardened cup or disk surrounded by a rim and containing the fructification, or asci.

A game played on board ship in which the aim is to shove or drive with a cue wooden disks into divisions chalked on the deck; -- called also shuffleboard.

A division of Scaphopoda including those in which the foot terminates in a circular disk.

d which produce a note of a given pitch. The sounds are produced by a perforated rotating disk or disks. A form with two disks operated by steam or highly compressed air is used sounding an alarm to vessels in fog. [Written also sirene, and syren.]

tle alley, an alley or court in which the game of skittles is played. -- Skittle ball, a disk or flattish ball of wood for throwing at the pins in the game of skittles.

An English game resembling ninepins, but played by throwing wooden disks, instead of rolling balls, at the pins.

ike. (b) A machine used by lapidaries for slicing stones, usually by means of a revolving disk, called a slicer, supplied with diamond powder. -- Slitting roller, one of a pair of rollers furnished with ribs entering between similar ribs in the other roller, and cutting like shears, -- used in slitting metals.…

e. The rays are often long, but are sometimes so short as to appear only as angles to the disklike body. Called also sea star, five-finger, and stellerid.

us American mole (Condylura cristata) having the nose expanded at the end into a stellate disk; -- called also star-nosed mole.

a bell-shaped, or cornucopia-like, body with a circle of cilia around the spiral terminal disk. See Illust. under Heterotricha.

The integument of the under surface of the bell, or disk-shaped body, of a jellyfish.

A kind of candy or sweetneat made up in small balls or disks.

he sun's rays; a photograph. -- Sun spots (Astron.), dark spots that appear on the sun's disk, consisting commonly of a black central portion with a surrounding border of lighter shade, and usually seen only by the telescope, but sometimes by the naked eye. They are very changeable in their figure and dimensions, and…

s Helianthus; -- so called probably from the form and color of its flower, which is large disk with yellow rays. The commonly cultivated sunflower is Helianthus annuus, a native of America.

A conspicuous disk attached to a switch lever to show its position, or for use as a signal.

ng minute extension or movements of solid bodies. It consists essentially of a small rod, disk, or button of carbon, forming part of an electrical circuit, the resistance of which, being varied by the changes of pressure produced by the movements of the object to be measured, causes variations in the strength of the cu…

An instrument for recording and reproducing sound by local magnetization of a steel wire, disk, or ribbon, moved against the pole of a magnet connected electrically with a telephone receiver, or the like.

A genus of a large naked mollusks having a very large, broad, fringed cephalic disk, and branched dorsal gills. Some of the species become a foot long and are brilliantly colored.

ernor for regulating the supply of steam to the steam chest. In one form it consists of a disk turning on a transverse axis.