leucotome

American

[loo-kuh-tohm] / ˈlu kəˌtoʊm /

noun

Surgery.

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

Etymology

Origin of leucotome

First recorded in 1935–40; leuco- + -tome

Example Sentences

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See Examples For:

leucotome

The bur holes permit passage of a leucotome, or lobotomy cannula, a hollow needle through which a loop of wire can be slipped.

From Time Magazine Archive

The leucotome is rotated through one complete circle, cutting a sphere or core of white matter in the pre-frontal area about ten millimetres in diameter.

From Time Magazine Archive

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023