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ultramicrotome

American  
[uhl-truh-mahy-kruh-tohm] / ˌʌl trəˈmaɪ krəˌtoʊm /

noun

Histology.

  1. a microtome capable of producing very fine slices of tissue or cellular specimens for electron microscopic examination.

Etymology

Origin of ultramicrotome

First recorded in 1945–50; ultra- + microtome

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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