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leucotome

[ loo-kuh-tohm ]
/ ˈlu kəˌtoʊm /
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noun Surgery.

an instrument for dissecting the white matter of the brain, consisting of a cannula containing a slender rotating blade.

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?

Origin of leucotome

First recorded in 1935–40; leuco- + -tome
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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