Is “Matryoshka” a Scrabble word?
Yes
MATRYOSHKA
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 Matryoshka
/ˌmætɹɪˈɒʃkə/
noun
1.One of a set of wooden Russian dolls of different sizes, designed such that each fits inside the next.
Synonyms: Russian doll