areola (n.)youdaoicibaDictYouDict[areola 词源字典]
"colored circle around a nipple," 1706, from Latin areola, literally "small area," diminutive of area (see area). Introduced in this sense 1605 by Swiss anatomist and botanist Caspar Bauhin (1560-1624).[areola etymology, areola origin, 英语词源]