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See more synonyms for discoid on Thesaurus.com
adjective Also dis·coi·dal.
  1. having the form of a discus or disk; flat and circular.
  2. Botany. (of a composite flower) consisting of a disk only, without rays.
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  1. something in the form of a disk.
  2. Dentistry. an excavator with a disklike blade.
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Origin of discoid

1785–95; < Late Latin discoīdēs < Greek diskoeidḗs quoit-shaped. See discus, -oid
Related formspost·dis·coi·dal, adjectivesub·dis·coid, adjectivesub·dis·coi·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for discoid

spherical, rounded, cylindrical, elliptical, oval, curved, bulbous, plate, platter, disc, bowed, looped, arched, spiral, circular, arced, bent, ringed, coiled, spheroid

Examples from the Web for discoid

Historical Examples of discoid

British Dictionary definitions for discoid


adjective Also: discoidal (dɪsˈkɔɪdəl)
  1. like a disc
  2. (of a composite flower such as the tansy) consisting of disc florets only
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  1. a disclike object
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

discoid in Medicine


  1. Shaped like or resembling a disk.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.