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The spontaneous casting off of a limb or other body part, such as the tail of certain lizards or the claw of a lobster, especially when the organism is injured or under attack.

au′to·tom′ic (ô′tə-tŏm′ĭk), au′tot′o·mous adj.
au·tot′o·mize′ v.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.autotomic - of or relating to autotomyautotomic - of or relating to autotomy