Is “Superjacent” a Scrabble word?
Yes
SUPERJACENT
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 Superjacent
/s(j)uːpəˈdʒeɪsənt/
adjective
1.Positioned immediately above or on top of something else; overlying.