[ dih-sek-shuh n, dahy- ]
/ dɪˈsɛk ʃən, daɪ- /


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

Nearby words

  1. disseat,
  2. dissect,
  3. dissected,
  4. dissecting aneurysm,
  5. dissecting cellulitis,
  6. dissection tubercle,
  7. disseise,
  8. disseisin,
  9. disseize,
  10. disseizee

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

Examples from the Web for dissection

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

Medicine definitions for dissection


[ 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.