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Chain Pump :: Chain pump () A pump consisting of an endless chain, running over a drum or wheel by which it is moved, and dipping below the water to be raised. The chain has at intervals disks or lifts which fit the tube through which the ascending part passes and carry the water to the point of discharge..

Discodactylia :: Discodactylia (n. pl.) A division of amphibians having suctorial disks on the toes, as the tree frogs..

Haematoblast :: Haematoblast (n.) One of the very minute, disk-shaped bodies found in blood with the ordinary red corpuscles and white corpuscles; a third kind of blood corpuscle, supposed by some to be an early stage in the development of the red corpuscles; -- called also blood plaque, and blood plate..

Myzostomata :: Myzostomata (n. pl.) An order of curious parasitic worms found on crinoids. The body is short and disklike, with four pairs of suckers and five pairs of hook-bearing parapodia on the under side..

Meniscus :: Meniscus (n.) An interarticular synovial cartilage or membrane; esp., one of the intervertebral synovial disks in some parts of the vertebral column of birds..

Anorthoscope :: Anorthoscope (n.) An optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted..

Medusoid :: Medusoid (a.) Like a medusa; having the fundamental structure of a medusa, but without a locomotive disk; -- said of the sessile gonophores of hydroids..

Gong :: Gong (n.) An instrument, first used in the East, made of an alloy of copper and tin, shaped like a disk with upturned rim, and producing, when struck, a harsh and resounding noise..

Shovelboard :: Shovelboard (n.) 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.

Disk :: Disk (n.) In owls, the space around the eyes..

Chaffy :: Chaffy (a.) Bearing or covered with dry scales, as the under surface of certain ferns, or the disk of some composite flowers..

Starfish :: Starfish (n.) Any one of numerous species of echinoderms belonging to the class Asterioidea, in which the body is star-shaped and usually has five rays, though the number of rays varies from five to forty or more. 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..

Wheel :: Wheel (n.) A rolling or revolving body; anything of a circular form; a disk; an orb.

Photodrome :: Photodrome (n.) An apparatus consisting of a large wheel with spokes, which when turning very rapidly is illuminated by momentary flashes of light passing through slits in a rotating disk. By properly timing the succession of flashes the wheel is made to appear to be motionless, or to rotate more or less slowly in either direction..

Disciferous :: Disciferous (a.) Bearing disks.

Target :: Target (n.) A conspicuous disk attached to a switch lever to show its position, or for use as a signal..

Gastropoda :: Gastropoda (n. pl.) One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They generally creep by means of a flat, muscular disk, or foot, on the ventral side of the body. The head usually bears one or two pairs of tentacles. See Mollusca..

Wheel :: Wheel (n.) A circular frame turning about an axis; a rotating disk, whether solid, or a frame composed of an outer rim, spokes or radii, and a central hub or nave, in which is inserted the axle, -- used for supporting and conveying vehicles, in machinery, and for various purposes; as, the wheel of a wagon, of a locomotive, of a mill, of a watch, etc..

Echinoidea :: Echinoidea (n. pl.) The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid..

Digit :: Digit (n.) One twelfth part of the diameter of the sun or moon; -- a term used to express the quantity of an eclipse; as, an eclipse of eight digits is one which hides two thirds of the diameter of the disk..

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