nipple

n. * , 奶头, 奶嘴
【化】 螺纹接口; 螺纹接套
【医】 *

nip.ple

n.（名词）
The small projection near the center of the mammary gland containing the outlets of the milk ducts through which young mammals obtain milk from the adult female; a teat.
乳头：靠近乳腺中心的小的凸起物，含有乳导管的出口，幼小的哺乳动物从成年雌性身上由此吸取乳汁；乳头


The rubber cap on a bottle from which a baby nurses.
橡皮乳头：奶瓶上用于喂婴儿用的橡皮奶头
A pacifier for an infant.
婴儿用的奶嘴
Any of various devices functioning like or resembling a nipple, especially:
似乳头的东西：任何一种具有类似乳头功能的器具或设备，尤指：
A regulated opening for discharging a liquid, as in a small stopcock.
水龙头：用于控制液体排出的开口，如在小的旋塞阀里
A pipe coupling threaded on both ends.
螺纹接头：一种两端都带外螺纹的管子
A short extension of pipe to which a nozzle can be attached.
用于绑缚喷嘴的一节伸出的短管
A small projection through which grease in a grease gun can be forced into a bearing.
滑油嘴：一个小的突起，通过它滑油枪中的润滑油能被注入轴承
A natural or geographic projection resembling a nipple, as a mountain crest.
乳头状物：类似乳头的任何自然的或地理上的突起物，如山顶

来源：
From obsolete neble [diminutive of] neb
源自 废语 neble [] neb的小后缀