Definition of flexion in English:

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Pronunciation: /ˈflekSHən/
(also flection)


The action of bending or the condition of being bent, especially the bending of a limb or joint: flexion of the fingers these protozoans can move by body flexions
More example sentences
  • During flexion, the spinal cord lengthens.
  • The wound was closed in layers, and a compressive dressing was applied with the ankle in slight plantar flexion.
  • The patient should be supine with some flexion of the dorsal spine to relax the tension of the anterior abdominal wall.


Early 17th century: from Latin flexio(n-), from flectere 'to bend'.

For editors and proofreaders

Syllabification: flex·ion

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