Translation guide
The small projection on a mammary gland from which milk is drawn, especially in animals. In Japanese, different words are used depending on the animal and context.
Referring to the teat of a cow, pig, or other domestic animal, often in farming or veterinary contexts.
General word for nipple or teat, used for both humans and animals. In animal contexts, it's the most common term.
The rubber or silicone nipple on a baby's feeding bottle.
Same word as for animal/human nipple, but context makes it clear. Often used with 哺乳瓶 (baby bottle).
Referring to a human nipple, often in informal or sexual contexts. Note: In medical or formal contexts, other terms may be used.
The most common colloquial word for human nipple. Can be used in everyday conversation but may be considered slightly direct.
In English, 'teat' can sound clinical or animal-like when applied to humans. In Japanese, 乳首 (ちくび) is the standard word for both human and animal nipples, but it's not considered overly clinical. However, in polite or formal human contexts, 乳頭 (にゅうとう) may be preferred.
牛の乳首は4本あります。
A cow has four teats.
Anatomical term for teat or nipple, often used in veterinary or scientific contexts.
豚の乳頭の数は品種によって異なります。
The number of teats on a pig varies by breed.
哺乳瓶の乳首を消毒してください。
Please sterilize the bottle teat.
Specifically a rubber teat, though modern ones are often silicone. ゴム means rubber.
このゴムの乳首は柔らかいです。
This rubber teat is soft.
赤ちゃんがお母さんの乳首を吸っています。
The baby is sucking on the mother's teat.
Formal anatomical term for human nipple, used in medical contexts.
乳頭の痛みがある場合は医師に相談してください。
If you have pain in the teat, consult a doctor.