What does "contiguous" mean?

Contiguous: In actual contact; touching; also, adjacent; near; neighboring; adjoining. The two halves of the paper did not appear fully divided . . . but seemed contiguous at one of their angles. Sir I. Newton. Sees no contiguous palace rear its head. Goldsmith. Contiguous angles. See Adjacent angles, under Angle. See Adjacent. - Con*tig"u*ous*ly, adv. -- Con*tig"u*ous*ness, n.