noun 1.any of numerous Old World freshwater fishes of the family Siluridae, comprising the catfishes.
adjective 2.belonging or pertaining to the family Siluridae.
Origin: 1890–95; <
Neo-Latin Siluridae name of the family, equivalent to
Silur(
us) genus name (
Latin silūrus a kind of fish <
Greek sílouros) +
-idae -id2