1. | 乳头either of the two small round dark parts on a person's chest. Babies can suck milk from their mother's breasts through the nipples . |
2. | 奶嘴;橡胶乳头the rubber part at the end of a baby's bottle that the baby sucks in order to get milk, etc. from the bottle |
3. | 乳头状物品;(机器的)喷嘴a small metal, plastic or rubber object that is shaped like a nipple with a small hole in the end, especially one that is used as part of a machine to direct oil, etc. into a particular place |
a grease nipple 油脂枪喷嘴 |