Fac″et (?), n. [F. facette, dim. of face face. See Face.] 1. A little face; a small, plane surface; as, the facets of a diamond. [Written also facette.]
2. (Anat.) A smooth circumscribed surface; as, the articular facet of a bone.
3. (Arch.) The narrow plane surface between flutings of a column.
4. (Zoöl.) One of the numerous small eyes which make up the compound eyes of insects and crustaceans.