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medical 医学 (of a part of the body 身体部位 turned backwards 后屈的 - (
phonetics 语音学 (of a speech sound 语音 produced with the end of the tongue turned up against the hard palate 卷舌的
Word Originlate 18th cent.: from Latin retroflex- ‘bent backwards’, from the verb retroflectere, from retro ‘backwards’ + flectere ‘to bend’.