黄金貴：古漢語同義詞辨釋詞典

Modern Chinese Criteria

• Lateinische Synonyme und Etymologien ( DOEDERLEIN 1840) p.

  NIPPLE

  papilla refers to the nipple with refernce to their spherical shape, and without distinction of the sexes.

  mamilla refers to the nipple with reference to their adaptation for sucking, and therefore belonging only to the female sex.

• Handbook of Greek Synonymes, from the French of M. Alex. Pillon, Librarian of the Bibliothèque Royale , at Paris, and one of the editors of the new edition of Plaché's Dictionnaire Grec-Français, edited, with notes, by the Rev. Thomas Kerchever Arnold, M.A. Rector of Lyndon, and late fellow of Trinity College, Cambridge ( PILLON 1850) p. no.320