papilla

名词 papilla:

1. (botany) a tiny outgrowth on the surface of a petal or leaf
2. a small nipple-shaped protuberance concerned with taste, touch, or smell
3. a small projection of tissue at the base of a hair or tooth or feather

pa.pil.la

n.（名词）
【复数】 pa.pil.lae[-pl.ô]
A small nipplelike projection, such as a protuberance on the skin, at the root of a hair or feather, or at the base of a developing tooth.
乳头状物：一种如在皮肤毛发、羽毛根部或正长着的牙的基部上的小的乳头突起
One of the small, round or cone-shaped protuberances on the top of the tongue that contain taste buds.
舌乳头：舌尖上的一种小而圆或核形的有芽状味觉器官的突起
A pimple or pustule.
粉刺或小脓疱
Botany A minute projection on the surface of a stigma, petal, or leaf.
【植物学】 乳突：花柱头、花瓣或叶子表面上细小的隆起物

来源：
Latin [nipple] [diminutive of] papula [swelling, pimple]
拉丁语 [乳头] [] papula的小后缀 [肿块，粉刺]

【引伸】
pap.illar.y
pap.illate.
papillose