(firearms) The area around the firing pin, which is against the head of the cartridge.

Alternative form of face only a mother could love

(colloquial, humorous) An attractive face.

(Australian politics, informal) Someone who is not elected to political office, but exerts power over political affairs from behind the scenes.

(management) An element that is necessary for an organization or project to achieve its mission.

plural of blue-faced honeyeater

A species of honeyeater, Entomyzon cyanotis, of Australia and New Guinea, the adults of which have large unfeathered blue patches on the face.

Of a female, having facial features typically associated with pixies (short-cropped hair (pixie cut), a small cute nose, and bright or mischievous smile).

plural of factor graph

(mathematics) A bipartite graph representing the factorization of a function.