Landdrost \Land"drost`\, n.; pl. {-drosten} . Sometimes incorrectly Landtrost \Landtrost\ [D., fr. land land + drost a kind of official; akin to G. truchsess.] In Cape Colony: (a) A chief magistrate in rural districts. He was replaced in 1827 by ``resident magistrates.'' (b) The president of the Heemraad.