名詞 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.（名詞）
【復數】 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.
乳頭狀物：一種如在皮膚毛發(fā)、羽毛根部或正長著的牙的基部上的小的乳頭突起
One of the small, round or cone-shaped protuberances on the top of the tongue that contain taste buds.
舌乳頭：舌尖上的一種小而圓或核形的有芽狀味覺器官的突起
A pimple or pustule.
粉刺或小膿皰
Botany A minute projection on the surface of a stigma, petal, or leaf.
【植物學】 乳突：花柱頭、花瓣或葉子表面上細小的隆起物

來源：
Latin [nipple] [diminutive of] papula [swelling, pimple]
拉丁語 [乳頭] [] papula的小后綴 [腫塊，粉刺]

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