an instrument for cutting very thin sections, as of organic tissue, for microscopic examination.

Origin of microtome

First recorded in 1855–60; micro- + -tome
Related formsmi·cro·tom·ic [mahy-kruh-tom-ik] /ˌmaɪ krəˈtɒm ɪk/, adjectivemi·crot·o·mist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for microtome

Historical Examples of microtome

  • When cold, the sections may be cut in any of the ordinary forms of microtome.

    On Laboratory Arts

    Richard Threlfall

  • My hunting knife, honed as fine as the edge of a microtome blade.


    Winston Marks

  • After hardening, sections were obtained of the paint film by means of a microtome.

  • There's a microtome in the laboratory here, but I might take weeks to get on terms with it.

    Swirling Waters

    Max Rittenberg

  • Henceforth I'll keep to the strictly neutral 'it' when I mention a microtome.

    Swirling Waters

    Max Rittenberg

British Dictionary definitions for microtome



an instrument used for cutting thin sections, esp of biological material, for microscopical examination
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

microtome in Medicine




An instrument that is used to cut a specimen, as of organic tissue, into thin sections for microscopic examination.histotome
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.