What is one of the group of pigmented cells which surround the retinophoræ of invertebrates. See Illust. under Ommatidium called?
retinula — One of the group of pigmented cells which surround the retinophoræ of invertebrates. See Illust. under Ommatidium. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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