Definition of armoured catfish in English:

armoured catfish

noun

(US armored catfish)
  • Any of numerous freshwater catfishes of the Central and South American families Callichthyidae and Loricariidae, having a covering of bony plates.

    Several kinds, especially in the genera Callichthys, Corydoras, and Hypostomus, are popular as aquarium fishes.

Origin

Late 19th century.