Definition of "Plume" :
noun: the light horny waterproof structure forming the external covering of birds
noun: a feather or cluster of feathers worn as an ornament
noun: anything that resembles a feather in shape or lightness
"A plume of smoke."
verb: dress or groom with elaborate care
verb: form a plume
verb: clean with one's bill
verb: deck with a plume
"A plumed helmet."
verb: be proud of
verb: rip off; ask an unreasonable price