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Related to ommatidium: Rhabdomere
n. pl. om·ma·tid·i·a (-ē-ə)
One of the optical units, consisting of photoreceptors and usually one or more lenses, that make up a compound eye of an insect or a crustacean.
om′ma·tid′i·al (-ē-əl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl -tidia (-ˈtɪdɪə)
(Zoology) any of the numerous cone-shaped units that make up the compound eyes of some arthropods
[C19: via New Latin from Greek ommatidion, from omma eye]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
om•ma•tid•i•um(ˌɒm əˈtɪd i əm)
n., pl. -tid•i•a (-ˈtɪd i ə)
one of the units that make up the compound eye of insects and other arthropods.
[1880–85; < New Latin < Greek ommat-]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
One of the tiny light-sensitive parts of the compound eye of insects and other arthropods. An ommatidium resembles a single simplified eye. See more at compound eye.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||ommatidium - any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods|
compound eye - in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image
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