Pluma | Webster's Dictionary of the English Language

pluma
plūma, ae, f., a small, soft feather; in plur., fine, soft feathers, down. I Lit. (clas.; syn. penn...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
pluma
plūma ae, f PLV-, a soft feather, feather, plume : plumae versicolores: ipsi plumā aut folio facil...

An Elementary Latin Dictionary