retrorse
retrorse[rɪˈtrɔːs]adjective- (Biology)turned or pointing backwards
(生)后弯的,倒向的
retrorse spines.
倒刺。
retrorselyadverb语源- early 19th cent.: from Latin retrorsus, contraction of retroversus, from retro 'backwards' + versus 'turned' (past participle of vertere)
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