The Collaborative International Dictionary of English v.0.48:
Abstractive \Ab*strac"tive\, a. [Cf. F. abstractif.] Having the power of abstracting; of an abstracting nature. "The abstractive faculty." --I. Taylor. [1913 Webster]WordNet (r) 3.0 (2006):
abstractive adj 1: of an abstracting nature or having the power of abstracting; "abstractive analysis"