Definitions
There is 1 meaning of the phrase
Dorsal Fin.
Dorsal Fin - as a noun
Unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance
Example Sentences
"The dolphin's dorsal fin slices through the water as it jumps out of the sea."
"The killer whale's dorsal fin can reach up to six feet tall."
"The shark's dorsal fin creates a distinct silhouette in the ocean."
"The humpback whale's dorsal fin is knobby in appearance."
"The sailfish's dorsal fin is one of the tallest among fish species."
