Is “Flexion” a Scrabble word?
Yes
FLEXION
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Flexion
/ˈflɛk.ʃən/
noun
1.The act of bending a joint, especially a bone joint; the counteraction of extension.
2.The state of being bent or flexed.
3.Deviation from straightness.