• synonyms


  1. a navigational device for making a nearby object conspicuous on a radarscope.
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Origin of derm

d(elayed) e(cho) r(adar) m(arker)


  1. variant of dermato- before a vowel: dermoid.
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  1. variant of -dermatous, usually with nouns (melanoderm; pachyderm), or variant of -dermis (blastoderm; ectoderm; mesoderm).
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Origin of -derm

probably < French -derme (< Greek -dermos -skinned, adj. derivative of dérma skin; or < -dermis -dermis); or directly < Greek -dermos
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for derm

Historical Examples of derm

  • Again the swelling is chiefly in the derm, or true skin, and we have what is known as a flesh wart (verucca carnea).

    Special Report on Diseases of Cattle

    U.S. Department of Agriculture

  • En' do derm cells, cells lining inner cavities in the many-celled animals.

British Dictionary definitions for derm


n combining form
  1. indicating skinendoderm
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Word Origin for -derm

via French from Greek derma skin
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

Word Origin and History for derm


1835, from Greek derma "skin, hide, leather" (see derma).

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word-forming element meaning "skin," from Greek derma "skin, hide, leather" (see derma).

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Online Etymology Dictionary, © 2010 Douglas Harper

derm in Medicine


  1. Skin; covering:blastoderm.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.