1
: the protuberance of a mammary gland upon which in the female the lactiferous ducts open and from which milk is drawn
2
a
: an artificial teat through which a bottle-fed infant nurses
b
: a device with an orifice through which the discharge of a liquid can be regulated
3
a
: a protuberance resembling or suggesting the nipple of a breast
b
: a small projection through which oil or grease is injected into machinery
4
: a pipe coupling consisting of a short piece of threaded tubing
Examples of nipple in a Sentence
Recent Examples on the Web
The nipples on the monkeys had more texture and realism than suited me.
—
Rivka Galchen, New Yorker, 21 Sep. 2025
Puffy nipples will often resolve on their own or with lifestyle changes.
—Sherri Gordon, Health, 21 Sep. 2025
Their texture and design mimics a nipple, so babies respond well to the familiar suckling apparatus.
—Bestreviews, Mercury News, 19 Sep. 2025
You’re supposed to put on a sports bra, and then insert the sizers, aligning the nipples with your own.
—Dory Zayas, Allure, 29 Aug. 2025
See All Example Sentences for nipple
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Rivka Galchen, New Yorker, 21 Sep. 2025
Puffy nipples will often resolve on their own or with lifestyle changes.
—Sherri Gordon, Health, 21 Sep. 2025
Their texture and design mimics a nipple, so babies respond well to the familiar suckling apparatus.
—Bestreviews, Mercury News, 19 Sep. 2025
You’re supposed to put on a sports bra, and then insert the sizers, aligning the nipples with your own.
—Dory Zayas, Allure, 29 Aug. 2025
See All Example Sentences for nipple
Cite this Entry
“Nipple.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nipple. Accessed 26 Sep. 2025.
Copy CitationKids Definition
nipple
noun
nip·ple
ˈnip-əl 
1
: the small protruding part of the gland that in females produces milk and from which a baby or young mammal sucks milk
2
: something resembling a nipple
especially
: the mouthpiece of a bottle from which an infant feeds
Medical Definition
nipple
noun
nip·ple
ˈnip-əl
1
: the protuberance of a mammary gland upon which in the female the lactiferous ducts open and from which milk is drawn
2
a
: an artificial teat through which a bottle-fed infant nurses
b
: a device with an orifice through which the discharge of a liquid can be regulated
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