ommatidium
Americannoun
noun
-
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
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of ommatidium
1880–85; < New Latin < Greek ommat- (stem of ómma eye) + New Latin -idium -idium
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The ommatidium is from the first segregate and consists of few cells.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various
Each ommatidium is an elongated cone with its broad extremity abutting against the corneal lenticle.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
The ommataeum, as already stated, tends to segregate into retinulae which correspond potentially each to an ommatidium of the compound eye.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various
The lateral eyes of Scorpio consist of groups of separate small lenses each with its ommatidium, but they do not form a continuous compound eye as in Limulus.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" by Various
The cells of the ommatidium are a good deal larger than the neighbouring common cells of the epidermis.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" by Various
So Rogers and his team embedded the artificial ommatidia in a flexible rubber sheet and wired them together with stretchable silicon circuits.
From Science Magazine ● May 1, 2013
Next, the team will tinker with the radius and curvature of the flexible ommatidia array to see what other optical feats the camera is capable of.
From Science Magazine ● May 1, 2013
These units, called ommatidia, are essentially self-contained minieyes.
From Science Magazine ● May 1, 2013
She gazed at the offensive growths emanating from her head, past her fine ommatidia and voluptuous proboscis, down to her admittedly elegant legs.
From Scientific American ● Apr. 15, 2012
In Crustacea and Hexapoda of all grades we find compound eyes with the more complicated ommatidia described above.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
