axilla

名词 axilla:

1. the hollow under the arm where it is joined to the shoulder
   同义词：armpit, axillary cavity, axillary fossa

ax.il.la

n.（名词）
【复数】 ax.il.lae[-sl.ô] 【解剖学】
The armpit.
腋窝
A body part analogous to the armpit, such as the hollow under a bird`s wing.
腋部：类似于腋窝的身体部位，比如鸟翅下面的空隙

来源：
Latin
拉丁语