[dih-sek-shuh n, dahy-]


the act of dissecting.
something that has been dissected.
a detailed, part-by-part analysis.

Origin of dissection

1575–85; < Latin dissectiōn- (stem of dissectiō), equivalent to dissect- (see dissect) + -iōn- -ion
Related formsre·dis·sec·tion, nounself-dis·sec·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Word Origin and History for dissection

1580s, from Middle French dissection, from Medieval Latin dissectionem (nominative dissectio), noun of action from past participle stem of Latin dissecare "cut in pieces," from dis- "apart" (see dis-) + secare "to cut" (see section).

Online Etymology Dictionary, © 2010 Douglas Harper

dissection in Medicine


[dĭ-sĕkshən, dī-]


The act or an instance of dissecting.
Something that has been dissected, such as a tissue specimen under study.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.