Is “Opisthobranch” a Scrabble word?
Yes
OPISTHOBRANCH
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 Opisthobranch
/ɵˈpɪsθəbɹæŋk/
noun
1.A gastropod with gills behind the heart, formerly thought to belong to a single group.
adjective
1.(of gills) Placed behind the heart.
2.(of a gastropod) Having gills placed behind the heart.