FLEXION Meaning of FLEXION in English [ 'flɛkʃ(ə)n ](also flection ) ■ noun the action of bending or the condition of being bent.OriginC17: from L. flexio(n-) , from flectere 'to bend'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004