thenar

After kneading dough all morning, the thenar of her right hand was tired.

用法提示：thenar 作主语，表示拇指根部隆起的部位，用 of 说明所属。

Press your thenar gently against the table and hold it there for ten seconds.

用法提示：thenar 作 press 的宾语，指手掌上拇指下方的肌肉区域。

Some guitarists have a more prominent thenar on the hand that presses the strings.

用法提示：thenar 用单数形式，前加 a 表示可数名词，指拇指球肌肉。