au·tot·o·my /ɔˈtɑtəmi/
自割
au·tot·o·my /ɔˈtɑtəmɪ/ 名詞
自切(動),自殘
autotomy
n : spontaneous removal or casting off of a body part (as the
tail of a lizard or claw or a lobster) especially when
the organism is injured or under attack