1.
[syn: probative, probatory]
The Collaborative International Dictionary of English v.0.48:
Probative \Pro"ba*tive\, a. [L. probativus: cf. F. probatif.]
Serving for trial or proof; probationary; as, probative
judgments; probative evidence. --South.
[1913 Webster]
WordNet (r) 3.0 (2006):
probative
adj 1: tending to prove a particular proposition or to persuade
you of the truth of an allegation; "evidence should only
be excluded if its probative value was outweighed by its
prejudicial effect" [syn: probative, probatory]