陥没乳首 かんぼつちくび Meanings Noun inverted nipple; retracted nipple See also: 陥没乳頭 (かんぼつにゅうとう). Kanji 陥 fall into. Read as カン. 没 submerge. Read as ボツ. 乳 milk 首 neck. Read as くび. Word lists Anatomy Jinuma: Japanese Dictionary · Word lists