Fulvous -us: tawny; light brown with much yellow; nearly orange [pale cadmium yellow + Indian red].
Fumate -us: smoky gray [gray].
Fumose: smoky.
Function: the work or duty which a given part or organ normally performs.
Fungicolous: living in or on fungi.
Funicle: the joints between the scape and club in Funiculate antennae: a small cord: a slender stalk.
Funiculate: whip-like: long, slender, composed of many flexible joints.
Funicule: a small, cord-like structure; especially when sheathed.
Funiculus: the main tendon of abdomen: in Hymenoptera a slender ligament connecting the propodeum to petiole on its dorsal aspect.
Furca: a fork: the anal appendage used for leaping in Thysanura; see furcula: the forked ental processes of the sternum.