The Collaborative International Dictionary of English v.0.48:
Locative \Loc"a*tive\, a. (Gram.) Indicating place, or the place where, or wherein; as, a locative adjective; locative case of a noun. -- n. The locative case. [1913 Webster]WordNet (r) 3.0 (2006):
locative n 1: the semantic role of the noun phrase that designates the place of the state or action denoted by the verb [syn: locative role, locative]