Is “Radii” a Scrabble word?
Yes
RADII
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 Radii
/ˈɹeɪ.diˌaɪ/
noun
1.The long bone in the forearm, on the side of the thumb.
2.The lighter bone (or fused portion of bone) in the forelimb of an animal.
3.One of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell.
Synonyms: R