nipple

Everyday

1. A nipple is the small raised point in the middle of each breast or on a man's or boy's chest; mothers feed babies milk through their nipples. tree →
2. (US) A nipple is the rubber or plastic teat on a baby's bottle that the baby sucks; in the UK this is called a teat. tree →
3. A nipple is a small nozzle on a machine, such as a grease nipple or a pipe fitting. tree →

In the lessons

In science and health lessons about the human body and mammals: all mammals feed their young with milk, and nipples show this. Said plainly in biology. Phrases: «baby bottle nipple», «grease nipple».

Examples

• All mammals have nipples. tree →
• A mother pig has many nipples to feed her piglets. tree →
• Babies drink milk from their mother's nipples or a bottle. tree →
• Boys have nipples too, even though they do not make milk. tree →
• (US) Put a clean nipple on the baby's bottle. tree →
• (UK) The bottle teat was too small. tree →
• The mechanic pumped grease into the nipple on the bike. tree →
• We labelled the parts of a cow in science, including the udder and teats. tree →

Note

A plain body word, fine in science lessons. Countable. Some children giggle at it, but it is not rude. Do not confuse with «nibble».