Is “Tectonic” a Scrabble word?
Yes
TECTONIC
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 Tectonic
adjective
1.Of or relating to construction or to architecture
2.Structural
3.Of, relating to, or caused by large-scale movements of the Earth's lithosphere