The Collaborative International Dictionary of English v.0.48:
Articulative \Ar*tic"u*la*tive\, a. Of or pertaining to articulation. --Bush. [1913 Webster]WordNet (r) 3.0 (2006):
articulative adj 1: of or relating to articulation; "articulatory features"; "articulatory phonetics" [syn: articulatory, articulative]