Medical Definition of dissect
: to cut so as to separate into pieces or to expose the several parts of (as an animal or a cadaver) for scientific examination; specifically : to separate or follow along natural lines of cleavage (as through connective tissue) <dissect out the regional lymph nodes> <a dissecting aneurysm>
: to make a medical dissection
Seen and Heard
What made you want to look up dissect? Please tell us where you read or heard it (including the quote, if possible).