/plu:m; plum/
n
(a) feather, esp a large one used as a decoration 羽毛; （尤指作装饰用的）翎子.
(b) ornament of feathers or similar material, worn in the hair or on a hat or helmet 羽毛或类似羽毛材料的饰物（装饰在头发上或帽上）
*a plume of ostrich feathers 鸵鸟羽毛的装饰.
(c) thing that rises into the air in the shape of a feather 貌似羽毛升空之物
*a plume of smoke/steam 一缕烟[蒸汽].

v
1 [Tn] (of a bird) smooth (sth) with its beak; preen （指鸟）用喙整理（某物）
*a bird pluming itself/its feathers/its wing 用喙整理自己[羽毛/翅膀]的鸟.
2 [Tn, Tn.pr] ~ oneself (on sth) congratulate or pride oneself (on sth) （为某事）自喜, 自豪. plumed adj having or decorated with a plume or plumes 有羽毛或翎子的; 用羽毛或翎子装饰的
*a plumed hat 有羽毛装饰的帽子.