eye common to invertebrates; eye-shaped spot
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Ocelli Definition from Arts & Humanities Dictionaries & Glossaries
Ocelli Definition from Language, Idioms & Slang Dictionaries & Glossaries
(pl. )
of Ocellus
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. Aboutof Ocellus
ocelli
see ocellus
Noun
1. an eye having a single lens
(synonym) simple eye, stemma
(hypernym) eye, oculus, optic
(hyponym) ommatidium
2. an eyelike marking (as on the wings of some butterflies); usually a spot of color inside a ring of another color
(synonym) eyespot
(hypernym) marking
Ocelli Definition from Science & Technology Dictionaries & Glossaries
Simple eyes on some adult and larval insects. Typically there are three, which form an inverted triangle dorsally, the function of which is obscure.
Catherine R. WeedenOcelli Definition from Encyclopedia Dictionaries & Glossaries
A simple eye (sometimes called a pigment pit) refers to a type of eye design or optical arrangement that contains a single lens which detects light. A "simple eye" is so-called in distinction from a multi-lensed "compound eye", and is not necessarily at all simple in the usual sense of the word. The eyes of humans and large animals, and camera lenses are classed as "simple" because in both cases a single lens collects and focuses light onto the retina or film. Many insects have compound eyes consisting of multiple lenses (up to tens of thousands), each focusing light onto a small number of retinula cells.
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