A flattened appendage on various parts of the body of many aquatic vertebrates and some invertebrates, including fish and cetaceans, used for propelling, steering, and balancing
At or near the end of a piece of writing
An unpaired fin located on the underside of a fish posterior to the anus
A boat’s keel shaped like an inverted dorsal fin
Another term for finback.
A fin at the posterior extremity of a fish’s body, typically continuous with the tail
A small, rayless, fleshy dorsal fin present in certain fishes, notably in the salmon family
Another term for tail fin.
An unpaired fin on the back of a fish or whale, e.g., the tall triangular fin of a shark or killer whale
Each of a pair of fins on the underside of a fish’s body, attached to the pelvic girdle and helping to control direction
another term for pelvic fin.
Each of a pair of fins situated on either side just behind a fish’s head, helping to control the direction of movement during locomotion. They correspond to the forelimbs of other vertebrates
Any of the unpaired fins in the midline of a fish’s body, i.e., a dorsal, anal, or caudal fin
Relating to or characteristic of the end of a century, especially the 19th century
A fish of a largely extinct group having fleshy lobed fins, including the probable ancestors of the amphibians
Each of the long, slender bony protuberances supporting the fins of most bony fishes
A widely distributed, commercially important tuna that has yellow anal and dorsal fins