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ommatidium

Noun

om=ma=tid=i=um

WORDNET DICTIONARY

ommatidium(n = noun.body) - any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods;

is a part of compound eye

ommatidium, n. [NL., dim. of Gr. , , the eye.].

One of the single eyes forming the compound eyes of crustaceans, insects, and other invertebrates; one of the eyes of an ommateum. [1913 Webster]

ommatidium, n. (pl. ommatidia) a structural element in the compound eye of an insect.

Etymology

mod.L f. Gk ommatidion dimin. of omma ommat- eye

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