In grammar, indicating place, or the place where or wherein: as, a locative adjective; a locative case.In anatomy and zoology, serving to locate or to indicate location or relative situation in a series. Thus, the name metencephalon or midbrain is locative of the part between extremes of a series.n. In grammar, a case-form indicating location, as existing in the original Indo-European or Aryan language, and preserved in some of its descendants, especially the Sanskrit.Serving to indicate the location of anything: as, a locative object in the neighborhood.