lob·​ule | \ ˈlä-(ˌ)byül How to pronounce lobule (audio) \

Definition of lobule

: a small lobe also : a subdivision of a lobe

Examples of lobule in a Sentence

Recent Examples on the Web In 2010, she was diagnosed with breast cancer again—this time with ductal carcinoma, like before, and lobular carcinoma, a cancer that affects the lobules that produce milk and empty out in the milk ducts. Maggie O'neill, Health.com, "'I Got Implants After Surviving Breast Cancer Twice—Then I Learned They Cause Cancer'," 4 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lobule.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lobule

1682, in the meaning defined above

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Time Traveler for lobule

Time Traveler

The first known use of lobule was in 1682

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Cite this Entry

“Lobule.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/lobule. Accessed 24 January 2020.

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More Definitions for lobule


lob·​ule | \ ˈläb-(ˌ)yü(ə)l How to pronounce lobule (audio) \

Medical Definition of lobule

1 : a small lobe the lobule of the ear
2 : a subdivision of a lobe specifically : one of the small masses of tissue of which various organs (as the liver) are made up

More from Merriam-Webster on lobule

Britannica.com: Encyclopedia article about lobule

Comments on lobule

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a feeling of well-being or elation

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