Is “Pinnae” a Scrabble word?
Yes
PINNAE
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 Pinnae
noun
1.The visible part of the ear that resides outside of the head, the auricle; outer ear excluding the ear canal.
2.A leaflet or primary segment of a pinnate compound leaf.
3.A feather, wing, fin, or other similar appendage.