Definition of disk

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Disk (n.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc..

Lern More About Disk

Discodactylia :: Discodactylia (n. pl.) A division of amphibians having suctorial disks on the toes, as the tree frogs..
Disk :: Disk (n.) A flat, circular plate; as, a disk of metal or paper..
Discal :: Discal (a.) Pertaining to, or resembling, a disk; as, discal cells..
Discoid :: Discoid (a.) Having the form of a disk, as those univalve shells which have the whorls in one plane, so as to form a disk, as the pearly nautilus..
Face :: Face (n.) The principal dressed surface of a plate, disk, or pulley; the principal flat surface of a part or object..
Discous :: Discous (a.) Disklike; discoid.
Phonograph :: Phonograph (n.) An instrument for the mechanical registration and reproduction of audible sounds, as articulate speech, etc. It consists of a rotating cylinder or disk covered with some material easily indented, as tinfoil, wax, paraffin, etc., above which is a thin plate carrying a stylus. As the plate vibrates under the influence of a sound, the stylus makes minute indentations or undulations in the soft material, and these, when the cylinder or disk is again turned, set the plate in vibration
Depressed :: Depressed (a.) Concave on the upper side; -- said of a leaf whose disk is lower than the border.
Stentor :: Stentor (n.) Any species of ciliated Infusoria belonging to the genus Stentor and allied genera, common in fresh water. The stentors have a bell-shaped, or cornucopia-like, body with a circle of cilia around the spiral terminal disk. See Illust. under Heterotricha..
Discophora :: Discophora (n. pl.) A division of acalephs or jellyfishes, including most of the large disklike species..
Ophiuroidea :: Ophiuroidea (n. pl.) A class of star-shaped echinoderms having a disklike body, with slender, articulated arms, which are not grooved beneath and are often very fragile; -- called also Ophiuroida and Ophiuridea. See Illust. under Brittle star..
Whiteweed :: Whiteweed (n.) A perennial composite herb (Chrysanthemum Leucanthemum) with conspicuous white rays and a yellow disk, a common weed in grass lands and pastures; -- called also oxeye daisy..
Epiclinal :: Epiclinal (a.) Situated on the receptacle or disk of a flower.
Disk :: Disk (n.) In owls, the space around the eyes..
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..
Half-moon :: Half-moon (n.) The moon at the quarters, when half its disk appears illuminated..
Disk :: Disk (n.) The central part of a radiate compound flower, as in sunflower..
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..
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..
Celidography :: Celidography (n.) A description of apparent spots on the disk of the sun, or on planets..
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