lob·​ule ˈlä-(ˌ)byül How to pronounce lobule (audio)
: a small lobe
also : a subdivision of a lobe

Examples of lobule in a Sentence

Recent Examples on the Web Only in some of these brain areas did neural activation peak prior to the spontaneous arising of a thought – most notably in the medial temporal lobe and inferior parietal lobule... Neuroskeptic, Discover Magazine, 28 Apr. 2016 Cysts form when fluid collects at the spot where a lobule, which produces milk during lactation, meets a milk storage duct. Rebekah Kuschmider, Health.com, 14 Oct. 2021 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, 4 Sep. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lobule.' 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

1682, in the meaning defined above

Time Traveler
The first known use of lobule was in 1682

Dictionary Entries Near lobule

Cite this Entry

“Lobule.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lobule. Accessed 16 Jun. 2024.

Medical Definition


lob·​ule ˈläb-(ˌ)yü(ə)l How to pronounce lobule (audio)
: a small lobe
the lobule of the ear
: a subdivision of a lobe
specifically : one of the small masses of tissue of which various organs (as the liver) are made up

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