cat·fish /-ˌfɪʃ/
  鯰魚
  Cat·fish n. Zool. A name given in the United States to various species of siluroid fishes; as, the yellow cat (Amiurus natalis); the bind cat (Gronias nigrilabrus); the mud cat (Pilodictic oilwaris), the stone cat (Noturus flavus); the sea cat (Arius felis), etc.  This name is also sometimes applied to the wolf fish. See Bullhrad.
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  catfish
       n 1: flesh of scaleless food fish of the southern United States;
            often farmed [syn: mudcat]
       2: large ferocious northern deep-sea food fishes with strong
          teeth and no pelvic fins [syn: wolffish, wolf fish]
       3: any of numerous mostly freshwater bottom-living fishes of
          Eurasia and North America with barbels like whiskers
          around the mouth [syn: siluriform fish]
       [also: catfishes (pl)]