F4I1N1B3A1C3K5
18 points
FINBACK is validvalid
the rorqual [n FINBACKS]
a type of whale characterized by a prominent fin on the back, aka rorqual, also FINFISH, FINNER [n -S]
the rorqual [n FINBACKS]
a type of whale characterized by a prominent fin on the back, aka rorqual, also FINFISH, FINNER [n -S]