verb
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to cut open and examine the structure of (a dead animal or plant)
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(tr) to examine critically and minutely
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To cut apart or separate body tissues or organs, especially for anatomical study.
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In surgery, to separate different anatomical structures along natural lines by dividing the connective tissue framework.
Other Word Forms
- dissectible adjective
- dissection noun
- dissector noun
- redissect verb (used with object)
- self-dissecting adjective
Etymology
Origin of dissect
1600–10; < Latin dissectus (past participle of dissecāre to cut up), equivalent to dis- dis- 1 + sec- cut + -tus past participle suffix
Explanation
When you dissect a frog in science class, you cut it open to look at its inner organs. To dissect is to break something down to look at its parts. Dissecting something allows you to look at it closely and understand it better. If your soccer team loses a match, you might want to dissect the game afterward to try to find exactly how and when things went wrong. Television analysts will often dissect a political speech to understand what was really being said, how true the statements were, and how well it was done.
Vocabulary lists containing dissect
"Fine?" Vocabulary from the short story
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Twenty Thousand Leagues Under the Sea
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Thirteen Reasons Why
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
If you dissect the reasons that most don’t actually earn those mythical buy-and-hold returns, losing money in bear markets isn’t the biggest reason.
From The Wall Street Journal • Mar. 26, 2026
The kids took to TikTok and Instagram to dissect every awful thing Banks and the rest did in the name of goosing ratings, with many wondering why its audience barely blinked at its endless exploitation.
From Salon • Feb. 20, 2026
Unlike memorable judging furors from the 1990s and 2000s, this time there was social media for angry fans to dissect videos and zoom in on every potential misstep.
From The Wall Street Journal • Feb. 12, 2026
I had to dissect that because it was kind of unreal.
From Los Angeles Times • Jan. 20, 2026
Physically, you can dissect him or use an X-ray.
From "I, Robot" by Isaac Asimov
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.
