wisp
/wɪsp; wɪsp/ n
~ (of sth)
1
(a) small separate bunch, bundle or twist (of sth) （某物的）小束, 小捆, 小绺, 小缕
a wisp of hair/hay/straw/grass 一束头发[乾草/稻草/青草].
(b) small streak or ribbon 小的条或带: a wisp of smoke 一缕烟.
2 small thin person 瘦小的人
a wisp of a girl 瘦小的女孩儿.