A thin barrier of concrete or similar material, buried around a building's foundation to keep rats out.

(zoology) A small South African mammal, Bathyergus suillus, that builds extensive burrows.

A fish, the chimaera. / A pirate.

A large rodent of the genus Thryonomys, native to subsaharan Africa.

A conglomeration of rats whose tails have become knotted or stuck together.

(slang) A towel that has been tightly twisted along the diagonal to make a rudimentary whip with a towel corner at the tip, typically used in juvenile pranks.

plural of rat-tail

(firearms) A rifle or pistol cartridge containing small shot instead of a single projectile.

A South American rat-like rodent, Octomys mimax.

(archaic) The ringed seal (the animal), especially the .