n. 叶浮(浮起,金属粉末悬浮现象)

[ noun ]
(botany) the process of forming leaves
<noun.process>

Leaf \Leaf\, Leaf out \Leaf out\(l[=e]f), v. i. [imp. & p. p.
{Leafed} (l[=e]ft); p. pr. & vb. n. {Leafing}.]
To shoot out leaves; to produce leaves; to leave; as, the
trees leaf in May. --Sir T. Browne.