01 n. One of the group of pigmented cells which surround the retinophorae of invertebrates. See Illust. under Ommatidium.
pl.
Retinulae ((#))
-
1.
One of the group of pigmented cells which surround the retinophorae of invertebrates. See Illust. under Ommatidium.(Zool.) See: Ommatidium