臂彎

臂弯
bìwān
crook of the arm

CEDICT

crook of the elbow

Wiktionary

臂膀彎折處。

重編國語辭典

Entry Composition

1 臂 bì arm
2 彎 wān
  1. to bend
  2. bent
  3. a bend; a turn (in a road etc)

classifier: 道