Is “Polynya” a Scrabble word?
Yes
POLYNYA
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 Polynya
/pə(ʊ)ˈlɪnjə/
noun
1.A naturally formed area of open water surrounded by sea ice, especially in the Arctic.
Synonyms: glade