mammary

American  

[mam-uh-ree] / ˈmæm ə ri /

adjective

Anatomy, Zoology.

1. of or relating to the mamma or breast.

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mammary British  

/ ˈmæmərɪ /

adjective

1. of, relating to, or like a mamma or breast

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Other Word Forms

• intermammary adjective
• postmammary adjective
• submammary adjective

Etymology

Origin of mammary

First recorded in 1675–85; mamm(a) ² + -ary

Example Sentences

Beyond mammary cancer, the researchers identified similarities to human cancer mutations in tumors affecting the blood, bone, lungs, skin, gastrointestinal system, and central nervous system.

From Science Daily • Mar. 18, 2026

The EU has already defined dairy items as products coming from the "normal mammary secretion".

From BBC • Oct. 8, 2025

They don't need to: the pups will happily take turns being nursed from the same mammary gland, and this devoted and well-cared-for mother spends plenty of time with each of her many, many beloved children.

From Salon • May 11, 2025

“The reason is because Holsteins produce more milk. So they have more volume for the virus to enjoy,” she said, noting research showing the virus’ affinity for mammary tissue.

From Los Angeles Times • Oct. 20, 2024

The many well-ascertained cases of various male mammals giving milk, show that their rudimentary mammary glands retain this capacity in a latent condition.

From The Variation of Animals and Plants Under Domestication, Volume II (of 2) by Darwin, Charles