Is “Leatherback” a Scrabble word?
Yes
LEATHERBACK
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 Leatherback
/ˈlɛ.ðɚ.bæk/
noun
1.A large sea turtle, Dermochelys coriacea, with a leathery back.