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

To test whether this approach could work in living organisms, the scientists treated mice that had aggressive mammary tumors that are typically difficult to treat.

From Science Daily • Mar. 12, 2026

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

From BBC • Oct. 8, 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

But a few kinds of mammals, like our elephantine friends and our fellow primates, have arrangements of mammary tissue on the chest.

From Slate • Aug. 13, 2024

Now, this pouch contains the mammary glands; but the young, being too feeble to exercise the requisite suction, the pyramidal muscles come to their assistance.

From Artistic Anatomy of Animals by Cuyer, ?douard