Is “Dominatrix” a Scrabble word?
Yes
DOMINATRIX
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 Dominatrix
/ˌdɒmɪˈneɪtɹɪks/
noun
1.A dominating woman; a female dominator.
2.A dominant female in sadomasochistic practices.
Synonyms: domina, domme