A compound eye is made up of many individual ommatidia. Each ommatidia has a hexagonal face which, together, all form the surface of the compound eye. It is this individual ommatidium face that is called a facet.
A scanning electron micrograph of the facets within the compound eye of a fruit fly (Drosophila sp.).
Photograph by Louisa Howard, Dartmouth College.
Other names for (or types of) Facet include:
- Corneal facet
Related groups of terms
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