a. 成分叉的, 分成两叉的

Crotch \Crotch\, v. t. [imp. & p. p. {Crotched} (kr[o^]cht); p.
pr. & vb. n. {Crotch"ing}.]
1. To provide with a crotch; to give the form of a crotch to;
as, to crotch the ends of ropes in splicing or tying
knots.
[Webster 1913 Suppl.]

2. (Logging) To notch (a log) on opposite sides to provide a
grip for the dogs in hauling. [Western, U. S.]
[Webster 1913 Suppl.]


Crotched \Crotched\ (kr[o^]cht), a.
1. Having a crotch; forked.

2. Cross; peevish. [Prov. Eng.] --Halliwell.

3. (Billiards) Lying within a crotch; -- said of the object
balls in the three-ball carom game whenever the centers of
both lie within a 41/2-inch square at a corner of the
table, in which case but three counts are allowed unless
one or both balls be forced out of the crotch.
[Webster 1913 Suppl.]