1. A little face; a small, plane surface; as, the facets of a diamond.
alternative forms: facette.
2. (Science: anatomy) a smooth circumscribed surface; as, the articular facet of a bone.
3. The narrow plane surface between flutings of a column.
4. (Science: entomology, zoology) One of the numerous small eyes which make up the compound eyes of insects and crustaceans.
Origin: f. Facette, dim. Of face face. See face.