1. A structure or organ attached to or extending from the dorsal (back) surface of an organism, commonly found in fish, insects, and other animals
The dorsal appendage of the fish helps with stability while swimming.
O apêndice dorsal do peixe ajuda na estabilidade durante a natação.
2. In zoology, any fin, spine, or protrusion located on the back or upper surface of an aquatic or terrestrial creature
The shark's dorsal appendage is clearly visible above the water.
O apêndice dorsal do tubarão é claramente visível acima da água.