c. 1600, "bent part," also, in grammar, "modification of part of a word," from Latin flexionem (nominative flexio) "a bending, swaying; bend, turn, curve," noun of action from past participle stem of flectere "to bend" (see flexible). Flection (18c.) is more recent, less etymological, but said to be more common in modern English, perhaps by influence of affection, direction, where the -ct- is in the Latin word. According to some modern dictionaries, flexion is "confined to anatomical contexts." Related: Flexional; flectional.
雙語例句
1. ObjectiveTo measure cortical areas involved ankle dorsiflexion and planter flexion.
目的檢測參與踝關(guān)節(jié)背屈和跖屈運(yùn)動(dòng)的腦區(qū).
來自互聯(lián)網(wǎng)
2. Method Do passive flexion and active extension of fingers after operating day.