compound eye


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compound eye

n.
The eye of most insects and some crustaceans, which is composed of many light-sensitive elements, each having its own refractive system and each forming a portion of an image.

compound eye

n
(Zoology) the convex eye of insects and some crustaceans, consisting of numerous separate light-sensitive units (ommatidia). See also ocellus

com′pound eye′


n.
an eye, typical of insects, composed of many individual light-sensitive units that form a mosaic of images on the retina.

compound eye

An eye, as of an insect or crustacean, consisting of hundreds or thousands of tiny light-sensitive parts, with each part creating a portion of an image.
Did You Know? The eyes have it—the important ability to see, that is. But not all eyes are created equal. Insects and other arthropods (which include lobsters and other crustaceans) have compound eyes, which are quite different from ours. The compound eye, greatly magnified, looks like a fencer's mask. It consists of many repeating units, called ommatidia, each of which is a separate light receptor. Some species' eyes have many ommatidia while others have only a few—the more ommatidia an eye has, the better it can resolve images. But even with many ommatidia, the typical compound eye is poor compared with ours at creating a sharp image. A honeybee, for example, sees only one-sixtieth as clearly as we do. However, the compound eye has other special talents. It is excellent at detecting motion, as the moving object passes from one ommatidium to the next. And some insects see ultraviolet light, which is invisible to us.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.compound eye - in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image
eye, oculus, optic - the organ of sight
ommatidium - any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods
References in periodicals archive ?
Genetically encoded Ca2+ indicators will be targeted to specific cellular compartments and imaged in intact flies by exploiting the optics of the compound eye.
Each compound eye was comprised of a large number of ommatidia, which were packed closely together in a hexagonal and square arrays.
And the scene in each of the tiny ommatidia (radial units composing compound eyes) that compose every compound eye is completely different with each passing instant.
The telescope was named Dragonfly because the lenses resemble the compound eye of an insect.
There is a protocerebrum, connecting to the compound eye and other frontal filaments and organs, a deuto- and trito-cerebrum, which receive input from antennae and a ventral nerve cord ganglial network.
Operating like the compound eye of an insect, the observatory will have a field of view 20 times greater than that of the American space agency's hugely successful Kepler space telescope.
Most known starfish species possess a compound eye at the tip of each arm, which, except for the lack of true optics, resembles arthropod compound eye.
In one piece, Looking Glass, which resembles an insect's compound eye, lots of adjoined transparent compartments each hold a glass model of the eye of an endangered species.
The movies I'm recalling seem to assume that a creature with a compound eye has better vision and perhaps multiple visual fields.
23 mm; Eye width (maximum width of compound eye, measured along short axis) 0.
The device works like an insect's compound eye, blending images from 108 miniature transducers working together.
Molecular phylogenetic evidence for the independent evolutionary origin of an arthropod compound eye.