プログレッシブ和英中辞典(第4版)の解説
ちち【乳】
❶〔母乳〕mother's milk;〔牛乳〕cow's milk
牛の乳をしぼる
milk a cow
乳を飲む
〔乳児が〕 《文》 suckle
乳がよく出る
have plenty of milk
乳のような
milky
❷〔乳房〕the breast(s)
乳を吸わせる
nurse [breast-feed/suckle] ((a baby))
乳臭い
smelling of milk;〔未熟な〕green;〔幼稚な〕childish
彼はまだ乳臭い
He is still green [immature]./He is still wet behind the ears.