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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..

Chromatrope :: Chromatrope (n.) An instrument for exhibiting certain chromatic effects of light (depending upon the persistence of vision and mixture of colors) by means of rapidly rotating disks variously colored.

Daisy :: Daisy (n.) A genus of low herbs (Bellis), belonging to the family Compositae. The common English and classical daisy is B. prennis, which has a yellow disk and white or pinkish rays..

Gastrodisc :: Gastrodisc (n.) That part of blastoderm where the hypoblast appears like a small disk on the inner face of the epibladst.

Full-orbed :: Full-orbed (a.) Having the orb or disk complete or fully illuminated; like the full moon.

Depressed :: Depressed (a.) Concave on the upper side; -- said of a leaf whose disk is lower than the border.

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..

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..

Discous :: Discous (a.) Disklike; discoid.

Tethys :: Tethys (n.) 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..

Disk :: Disk (n.) A part of the receptacle enlarged or expanded under, or around, or even on top of, the pistil..

Sarcous :: Sarcous (a.) Fleshy; -- applied to the minute structural elements, called sarcous elements, or sarcous disks, of which striated muscular fiber is composed..

Discoblastic :: Discoblastic (a.) Applied to a form of egg cleavage seen in osseous fishes, which occurs only in a small disk that separates from the rest of the egg..

Siren :: Siren (n.) An instrument for producing musical tones and for ascertaining the number of sound waves or vibrations per second 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.

Placentiform :: Placentiform (a.) Having the shape of a placenta, or circular thickened disk somewhat thinner about the middle..

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

Bezant :: Bezant (n.) A decoration of a flat surface, as of a band or belt, representing circular disks lapping one upon another..

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..

Celidography :: Celidography (n.) A description of apparent spots on the disk of the sun, or on planets..

Truck :: Truck (v. i.) A small piece of wood, usually cylindrical or disk-shaped, used for various purposes..

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