flexionPronunciation: /ˈflɛkʃ(ə)n/ (also flection)Definition of flexion noun [mass noun] the action of bending or the condition of being bent, especially the bending of a limb or joint:flexion of the fingersOrigin: early 17th century: from Latin flexio(n-), from flectere 'to bend'flexion in other Oxford dictionaries Definition of flexion in the US English dictionary
