Difference between revisions of "disc"

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Revision as of 19:47, 11 September 2013

disc also disk (noun; Latin discus, circular plate): 1. Any flattened part in the form of a disc.

2. Circumoral area of many animals.

3. (Arthropoda: Insecta) In Coleoptera, the general dorsal surface of the elytra, usually marked by longitudinal striae corresponding to a row of sclerotized pillars connecting the upper and lower faces of the elytra.

4. (Echinodermata: Asteroidea) The central part of the body.

5. (Mollusca: Bivalvia) The whole valve exclusive of the auricles in Pectinacea.