Is “Shadowgraphs” a Scrabble word?
Yes
SHADOWGRAPHS
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 Shadowgraphs
noun
1.A shadow-picture; a radiograph or X-ray photograph; a sciagram.
2.An optical technique of visualizing patterns of fluid flow by using differences in refractive index