ommatidium
[om-uh-tid-ee-uh m]
- one of the radial elements composing a compound eye.
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Origin of ommatidium
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ommatidium
Historical Examples
Ommatidium -ia: one of the elements of which the compound eye is composed.
Explanation of Terms Used in EntomologyJohn. B. Smith
The ommatidium is from the first segregate and consists of few cells.
The cells of the ommatidium are a good deal larger than the neighbouring common cells of the epidermis.
The ommatidium (soft structure beneath the lens-unit of a compound eye) is very simple in both Scorpio and Limulus.
Each of these facets is the external window of an eye element or ommatidium.
Elementary Zoology, Second EditionVernon L. Kellogg
ommatidium
- any of the numerous cone-shaped units that make up the compound eyes of some arthropods
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Word Origin
C19: via New Latin from Greek ommatidion, from omma eye
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
ommatidium
[ŏm′ə-tĭd′ē-əm]
- 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.
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The American Heritage® Science Dictionary
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