3是什么意思？

3

• three；

英英词典释义

• Noun
  1. the cardinal number that is the sum of one and one and one
• Adjective
  1. being one more than two

行业词典

• 药学： 额旁；线 épángxiàn Ⅲ, MS4, lateral line 3 of forehead 头［皮］针穴线。从头维内侧0.75寸起向下引一直线，长1寸。；