autotomy

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au·tot·o·my

 (ô-tŏt′ə-mē)
n.
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.

autotomy

(ɔːˈtɒtəmɪ)
n, pl -mies
(Zoology) the casting off by an animal of a part of its body, to facilitate escape when attacked
autotomic, autotomous adj

au•tot•o•my

(ɔˈtɒt ə mi)

n., pl. -mies.
the breaking off of a damaged or trapped body appendage, as the tail of a lizard or the claw of a crab.
[1895–1900]
au•to•tom•ic (ˌɔ təˈtɒm ɪk) au•tot′o•mous, adj.
au•tot′o•mize`, v.i., v.t. -mized, -miz•ing.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.autotomy - spontaneous removal or casting off of a body part (as the tail of a lizard or claw of a lobster) especially when the organism is injured or under attackautotomy - spontaneous removal or casting off of a body part (as the tail of a lizard or claw of a lobster) especially when the organism is injured or under attack
remotion, removal - the act of removing; "he had surgery for the removal of a malignancy"