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ommatidium
[ om-uh-tid-ee-uhm ]
noun
, Zoology.
, plural om·ma·tid·i·a [om-, uh, -, tid, -ee-, uh].
- one of the radial elements composing a compound eye.
ommatidium
/ ˌɒməˈtɪdɪəm /
noun
- any of the numerous cone-shaped units that make up the compound eyes of some arthropods
ommatidium
/ ŏm′ə-tĭd′ē-əm /
, Plural ommatidia
- 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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Derived Forms
- ˌommaˈtidial, adjective
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Other Words From
- omma·tidi·al adjective
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Word History and Origins
Origin of ommatidium1
1880–85; < New Latin < Greek ommat- (stem of ómma eye) + New Latin -idium -idium
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Word History and Origins
Origin of ommatidium1
C19: via New Latin from Greek ommatidion, from omma eye
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Example Sentences
The ommatidium is from the first segregate and consists of few cells.
From Project Gutenberg
The cells of the ommatidium are a good deal larger than the neighbouring common cells of the epidermis.
From Project Gutenberg
The ommatidium (soft structure beneath the lens-unit of a compound eye) is very simple in both Scorpio and Limulus.
From Project Gutenberg
Each of these facets is the external window of an eye element or ommatidium.
From Project Gutenberg
Ommatidium -ia: one of the elements of which the compound eye is composed.
From Project Gutenberg
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