Is “Retia” a Scrabble word?
Yes
RETIA
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 Retia
/ˈɹiːti.ə/
noun
1.A network of blood vessels or nerves.
2.An anatomical part resembling or including a network.
3.A rotating cutaway plate or overlay on an astrolabe or starmap which represents the horizon; used to locate stars and other astronomical features.