Having undergone self-amputation or having had a body part voluntarily or reflexively detached.
From 'autotomise' (British spelling) + past participle '-ed'. British English variant of autotomized used in scientific literature.
An autotomised lizard is one that has already dropped its tail—you can often spot these in the wild because they're running around with stub tails or fresh regenerating ones. Each time they autotomise, they lose energy and nutrients, so they're more cautious after the first escape.
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