The Collaborative International Dictionary
Corroborative \Cor*rob"o*ra*tive\ (k?r-r?b"?-r?-t?v), a. [Cf. F. corroboratif.] Tending to strengthen of confirm.
Corroborative \Cor*rob"o*ra*tive\, n.
A medicine that strengthens; a corroborant.
--Wiseman.
Wiktionary
a. Serving to corroborate n. (context dated English) a medical tonic; a corroborant
WordNet
adj. serving to support or corroborate; "collateral evidence" [syn: collateral, confirmative, confirming, confirmatory, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying]
Usage examples of "corroborative".
Franz himself could not resist a feeling of superstitious dread -- so much the stronger in him, as it arose from a variety of corroborative recollections, while the terror of the countess sprang from an instinctive belief, originally created in her mind by the wild tales she had listened to till she believed them truths.
When they are involved, require corroborative evidence in exact proportion to the contravention of probability by the thing testified.