Silure :: Silure (n.) A fish of the genus Silurus, as the sheatfish; a siluroid..
Silurian :: Silurian (a.) Of or pertaining to the country of the ancient Silures; -- a term applied to the earliest of the Paleozoic eras, and also to the strata of the era, because most plainly developed in that country..
Siluridan :: Siluridan (n.) Any fish of the family Siluridae or of the order Siluroidei.
Siluroid :: Siluroid (n.) Belonging to the Siluroidei, or Nematognathi, an order of fishes including numerous species, among which are the American catfishes and numerous allied fresh-water species of the Old World, as the sheatfish (Silurus glanis) of Europe..