brain·​case | \ ˈbrān-ˌkās \

Definition of braincase

: the cranium enclosing the brain

Examples of braincase in a Sentence

Recent Examples on the Web

Researchers found that over winter the braincases of the animals shrunk by an average of 15 percent in anticipation of winter, then rebounded almost, but not quite, to its former size in spring. Jason Daley, Smithsonian, "Shrews Shrink Their Skulls and Brains for the Winter," 25 Oct. 2017 Given the Jebel Irhoud fossils’ modern faces and primitive braincases, Hublin and his team suggest that the features associated with modern humans probably didn’t evolve all at once. National Geographic, "These Early Humans Lived 300,000 Years Ago—But Had Modern Faces," 7 June 2017

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

First Known Use of braincase

1726, in the meaning defined above

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The first known use of braincase was in 1726

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More Definitions for braincase


brain·​case | \ -ˌkās \

Medical Definition of braincase

: the part of the skull that encloses the brain — see cranium

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