a. [ Cf. F. déterminatif. ] Having power to determine; limiting; shaping; directing; conclusive. [ 1913 Webster ]
Incidents . . . determinative of their course. I. Taylor. [ 1913 Webster ]
Determinative tables (Nat. Hist.),
n. That which serves to determine. [ 1913 Webster ]
Explanatory determinatives . . . were placed after words phonetically expressed, in order to serve as an aid to the reader in determining the meaning. I. Taylor (The Alphabet). [ 1913 Webster ]