Is “Prism” a Scrabble word?
Yes
PRISM
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 Prism
/ˈpɹɪzəm/
noun
1.A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.
2.A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.
3.A crystal in which the faces are parallel to the vertical axis.