Definition of "corroboratory" []

• Serving to corroborate or strengthen (adjective)

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• "In this context, the new journal article provides corroboratory evidence that dust collected locally the afternoon of 9/11 and the following day contains microscopic traces of thermite."
• "The more research is undertaken, the more corroboratory evidence we find for events in France, England, and America."
• "The certificates were regularly signed as extracts from the parish books, the first letter had a genuine appearance of having been written and preserved for some years, the handwriting of the second tallied with it exactly, (making proper allowance for its having been written by a person in extremity,) and there were several other corroboratory scraps of entries and memoranda which it was equally difficult to question."