pa·pil·la /pəˈpɪlə/
乳頭,乳首,小乳頭狀突起
pa·pil·la /pəˈpɪlə/ 名詞
乳頭
Pa·pil·la n.; pl. Papillæ Any minute nipplelike projection; as, the papillæ of the tongue.
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papilla
n 1: a small nipple-shaped protuberance concerned with taste,
touch, or smell; "the papillae of the tongue"
2: a small projection of tissue at the base of a hair or tooth
or feather
[also: papillae (pl)]