1
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The baby's mouth was firmly attached to the nipple.
婴儿的嘴紧紧含住乳头。
乳头
先理解核心含义，再看它在真实句子里的用法。
乳头
The small projection on the breast of a mammal through which milk is secreted.
The baby's mouth was firmly attached to the nipple.
婴儿的嘴紧紧含住乳头。
乳腺的突出部分,雌性哺乳动物通过此处分泌乳汁。
The projection of a mammary gland from which, on female therian mammals, milk is secreted.
乳腺的小型突起
the small projection of a mammary gland
乳头(名词义1)和乳晕一起。
The nipple (noun sense 1) and the areola together.
婴儿奶瓶或安抚奶嘴上的柔性帽
a flexible cap on a baby's feeding bottle or pacifier
The baby eagerly sucked on the bottle's nipple.
宝宝急切地吸着奶瓶的奶嘴。
The doctor explained that the nipple is surrounded by the areola.
医生解释说乳头被乳晕包围。
She applied a soothing cream to her sore nipples after breastfeeding.
她在哺乳后给疼痛的乳头涂上舒缓霜。
The baby's mouth was firmly attached to the nipple.
婴儿的嘴紧紧含住乳头。
She replaced the broken nipple of the baby bottle.
她更换了奶瓶上坏掉的奶嘴。
The plumber connected the pipes with a brass nipple.
水管工用黄铜螺纹接口连接了管道。
Not this
She has large nipples.
Use this
She has large breasts.
将‘nipple’(乳头)误用作‘breast’(乳房)是常见的中式英语错误，因为中文中‘乳头’有时被用来泛指乳房。纠正时应使用正确的解剖学术语‘breasts’。
Not this
The baby sucked the nipple.
Use this
The baby sucked on the nipple.
动词‘suck’后需接介词‘on’表示‘吸吮某物’，直接接宾语是语法错误。中文‘吸’可直接接宾语，导致学习者遗漏介词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
内陷乳头
An inverted nipple can make breastfeeding difficult.
内陷乳头可能使母乳喂养困难。
乳头酸痛
Many new mothers experience sore nipples during breastfeeding.
许多新妈妈在母乳喂养期间会出现乳头酸痛。
乳头霜
She applied nipple cream to soothe the cracked skin.
她涂抹乳头霜来舒缓皲裂的皮肤。
乳头保护罩
A nipple shield can help with latching problems.
乳头保护罩有助于解决含乳问题。
奶瓶奶嘴
Choose a bottle nipple with a slow flow for a newborn.
为新生儿选择慢流量的奶瓶奶嘴。
润滑油嘴
The mechanic pumped grease into the grease nipple.
机械师将润滑油泵入润滑油嘴。
解放乳头。
The film Free the Nipple sparked conversations about censorship and gender equality.
电影《解放乳头》引发了关于审查制度和性别平等的讨论。
Use nipple naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 nipple 联想为“nip（轻捏）+ple”：轻轻捏一下奶嘴或乳头，联想到宝宝喝奶。这样记住它表示“奶嘴”或“乳头”。
语域：neutral 常见场景：medical consultation、anatomy education、breastfeeding guidance 指人体乳房部位时，'nipple' 通常是一个中性、标准的常用词，多用于医疗问诊、健康科普和日常交流；在特别正式或涉及隐私的场合，也有人会用更委婉的说法。把它的语域定为中性比较稳妥。
常与介词on搭配，如nipple on a bottle（奶瓶上的奶嘴）
Dictionary facts from ECDICT, WIKTIONARY.