Catfish/ˈkætfɪʃ/ Definition 1 of 2Pro Tip 1/3Visual Description Imagine the catfish's distinctive barbels as cat whiskers to remember its appearance. The catfish looked interesting with its cat-like whiskers. Pro Tip 2/3Habitat Specific Catfish are mainly found in freshwater environments, which can help you understand their habitat. They went to the lake to find some catfish. Pro Tip 3/3Culinary Context Catfish is not only an animal but also food; it's commonly served fried in certain regions. He ordered fried catfish at the southern restaurant.