Is “Helicon” a Scrabble word?
Yes
HELICON
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 Helicon
noun
1.A large tuba whose coils fit around the player's shoulders.
2.A low-frequency electromagnetic wave observed in various plasmas.