nipple

n 1 (a) small projection on the breast through which a baby sucks its mother's milk （女子的）乳头, 奶头. (b) similar projection on the chest of a human male （男子的）乳头. Cf 参看 teat. =>illus at human 见human插图. 2 = teat. 3 thing shaped like a nipple 似乳头之物: `grease nipples, ie for squirting grease into machinery 油脂喷嘴.

nihilistic, nil, Nile, nimble, nimbleness, nimbly, nimbus, nincompoop, nine, nine-, ninepin, nineteen, nineteenth, ninetieth, ninety, ninny, ninth, ninthly, nip, nipper, nippy, nirvana, Nissen hut, nit, nit-picking, nitpick, nitpicking, nitrate, nitre (US niter), nitric, nitric acid, nitrogen, nitrogenous, nitrous, nitrous oxide (also laughing-gas), nitty-gritty, nitwit, nitwitted, nix, no,