Is Retinula a Word?

noun, plural re·tin·u·lae [ri-tin-yuh-lee]. Anatomy. a group of elongate neural receptor cells forming part of an arthropod compound eye: each retinula cell leads to a nerve fiber passing to the optic ganglion.

What does retinula mean?

: the neural receptor of a single facet of an arthropod compound eye.

What is Retinula cell?

In an ommatidium, a long neuron surrounded by secondary pigment cells and containing a specialized region known as a rhabdomere, from which a nerve axon projects through the basement membrane to the optic nerve. From: retinula cell in A Dictionary of Zoology »