'Dissection' definitions:

Definition of 'dissection'

noun

Cutting so as to separate into pieces

noun

A minute and critical analysis

noun

Detailed critical analysis or examination one part at a time (as of a literary work)

From: GCIDE

Dissection \Dis*sec"tion\, n. [Cf. F. dissection.]
1. The act of dissecting an animal or plant; as, dissection of the human body was held sacrilege till the time of Francis I. [1913 Webster]
2. Fig.: The act of separating or dividing for the purpose of critical examination. [1913 Webster]
3. Anything dissected; especially, some part, or the whole, of an animal or plant dissected so as to exhibit the structure; an anatomical so prepared. [1913 Webster]
Dissection wound, a poisoned wound incurred during the dissection of a dead body. [1913 Webster]