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.
权威例句
1. ObjectiveTo measure cortical areas involved ankle dorsiflexion and planter flexion.
目的检测参与踝关节背屈和跖屈运动的脑区.
2. Method Do passive flexion and active extension of fingers after operating day.
方法从手术当天开始作被动屈指,主动伸指运动.
3. We can replace this by plaster with the arm in flexion.
我们可以用石膏来替代它,把上臂固定于屈曲位.
4. A suspended trot with joint flexion when viewed from the side.
小跑时如同悬浮着,从侧面观察,关节弯曲.
5. Study Design. An in io flexion - extension magnetic resonance imaging study.