- Anat. the bending of a joint or limb by contraction of flexor muscles
- also flec·tion Anatomy a. The act of bending a joint or limb in the body by the action of flexors.b. The resulting condition of being bent.
- A part that is bent.
Origin of flexionLatin flexiō, flexiōn-, a bending, from flexus, past participle of flectere, to bend.
From Latin flexiō.