derms

derm

[durm]
noun
a navigational device for making a nearby object conspicuous on a radarscope.

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

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Etymonline
Word Origin & History

derm
1835, from Gk. derma "skin, hide, leather."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

-derm suff.
Skin; covering: blastoderm.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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