dissection

noun

dis·​sec·​tion dī-ˈsek-shən 

also

di-  ˈdī-ˌsek- 

1

: the act or process of dissecting : the state of being dissected

2

: an anatomical specimen prepared by dissecting

Synonyms of dissection

• analysis
• examination
• investigation

Examples of dissection in a Sentence

the book's dissection of the problem of obesity in this country

Recent Examples on the Web

According to federal statistics, the connection between animal cruelty and human violence is well documented; the needless dissection of animals in schools is conceivably the basis for contempt of all living beings, beginning at a young age. —Voice Of The People, New York Daily News, 22 Feb. 2026

This symptom is especially associated with spontaneous coronary artery dissection (SCAD), a dangerous condition that’s the leading cause of heart attacks in women under age 50. —Nadine Avola, Flow Space, 19 Feb. 2026

Through the striking comparison of yesterday’s expectations and the mundane reality of those who were born and raised in the shadow of a phantom project, Rosario Minervini performs a dissection of clinical precision of the delays that have weighed down Italy’s collective psyche over time. —Matthew Carey, Deadline, 17 Feb. 2026

Chris Johnson in the hospital after an aortic dissection. —Kerry Breen, CBS News, 31 Jan. 2026

Word History

First Known Use

1578, in the meaning defined at sense 1

Rhymes for dissection

• abjection
• advection
• affection
• bijection
• bisection
• collection
• complexion
• confection
• connection
• connexion
• convection
• correction

Kids Definition

dissection

noun

dis·​sec·​tion -ˈsek-shən 

-ˌsek-

1

: the act or process of dissecting : the state of being dissected

2

: a plant or animal or a part of one that has been dissected for study of the anatomy

Medical Definition

dissection

noun

dis·​sec·​tion dis-ˈek-shən; dī-ˈsek-  ˈdī-ˌ 

1

: the act or process of dissecting or separating: as

a

: the surgical removal along natural lines of cleavage of tissues which are or might become diseased

b

: the digital separation of tissues (as in heart-valve operations) compare finger fracture

c

: a pathological splitting or separation of tissue see aortic dissection

2

a

: something (as a part or the whole of an animal) that has been dissected

b

: an anatomical specimen prepared in this way