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Medical Dictionary


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noun dis·sec·tion \dis-ˈek-shən; dī-ˈsek-, ˈdī-ˌ\

Medical Definition of dissection

  1. 1:  the act or process of dissecting or separating: asa:  the surgical removal along natural lines of cleavage of tissues which are or might become diseasedb:  the digital separation of tissues (as in heart-valve operations)—compare finger fracturec:  a pathological splitting or separation of tissue—see aortic dissection

  2. 2a:  something (as a part or the whole of an animal) that has been dissectedb:  an anatomical specimen prepared in this way

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a division or portion of a pool or whole

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