lactation

noun

lac·​ta·​tion lak-ˈtā-shən How to pronounce lactation (audio)
plural lactations
1
: the production and secretion of milk by the mammary glands
… there may be overproduction of prolactin, the breast milk hormone. A sign of that might be abnormal lactation.Paul G. Donohue
When a doe kids and begins lactation, she must draw on the calcium stored in her bones to furnish enough blood calcium for milk production.David B. Weems
lactation rooms where mothers can express milk for baby.Shawn Tully
… the infants of mothers given the names of lactation support groups or individuals instead are more likely to be fully breast-feeding at four months.Barbara Quick
2
: one complete period of lactation extending from about the time of birthing to weaning
… cows fed 1.1 percent bicarb in the total ration produced an average 17,587 lbs. of milk per lactationEastern Milk Producer
lactational adjective
lactational mastitis

Examples of lactation in a Sentence

Recent Examples on the Web Staffers hang out in a lactation pod, in an office where nobody breast-feeds; pledge-drive contributions are heralded with the call of the common loon. Sarah Larson, The New Yorker, 8 Feb. 2024 The workplace in turmoil over whether to open a lactation room to other uses has reached détente — for now. Karla L. Miller, Washington Post, 14 Dec. 2023 Nurse lactation consulting is also free to Hologic employees. Hang Nguyen, San Diego Union-Tribune, 19 Nov. 2023 At the New York City Marathon yesterday, new mom runners had access to lactation stations along the route. Emma Hinchliffe, Fortune, 6 Nov. 2023 Scholars following Man the Hunter dogma relied on this belief in women's limited physical capacities and the assumed burden of pregnancy and lactation to argue that only men hunted. Cara Ocobock, Scientific American, 19 Oct. 2023 The Bodily also received a specific shoutout from one of our lactation experts, Cinthia Scott, RD, IBCLC, a licensed pediatric dietitian at The Baby Dietitian. Chaunie Brusie, Rn, Bsn, Parents, 19 Oct. 2023 The company’s new model, Everyday Care, will offer a 24/7 on-demand text message service for parents to connect with pediatricians, sleep coaches, and lactation experts. Byalexa Mikhail, Fortune Well, 13 Nov. 2023 Most states, including Idaho, do not regulate lactation consultants. Jessica Silver-Greenberg, New York Times, 18 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lactation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1837, in the meaning defined at sense 1

Time Traveler
The first known use of lactation was circa 1837

Dictionary Entries Near lactation

Cite this Entry

“Lactation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactation. Accessed 21 Feb. 2024.

Medical Definition

lactation

noun
lac·​ta·​tion lak-ˈtā-shən How to pronounce lactation (audio)
1
: the secretion and yielding of milk by the mammary gland
2
: one complete period of lactation extending from about the time of parturition to weaning
lactational adjective
lactationally adverb
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!