Is “Dihedrals” a Scrabble word?
Yes
DIHEDRALS
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 Dihedrals
noun
1.An angle between two plane surfaces
2.The upward slope of an aircraft's wing
3.The angle between pairs of chemical bonds separated by a third bond