Facet /(?)/

1. A little face; a small, plane surface; as, the facets of a diamond.
2. A smooth circumscribed surface; as, the articular facet of a bone. (Anat.)
3. The narrow plane surface between flutings of a column. (Arch.)
4. One of the numerous small eyes which make up the compound eyes of insects and crustaceans. (Zool.)

imp. & p. p. Faceted; p. pr. & vb. n. Faceting

1. To cut facets or small faces upon; as, to facet a diamond.