corroboratory
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cor·rob·o·rate
(kə-rŏb′ə-rāt′)tr.v. cor·rob·o·rat·ed, cor·rob·o·rat·ing, cor·rob·o·rates
To strengthen or support with other evidence; make more certain. See Synonyms at confirm.
[Latin corrōborāre, corrōborāt- : com-, com- + rōborāre, to strengthen (from rōbur, rōbor-, strength; see reudh- in Indo-European roots).]
cor·rob′o·ra′tion n.
cor·rob′o·ra′tive (-ə-rā′tĭv, -ər-ə-tĭv), cor·rob′o·ra·to′ry (-ər-ə-tôr′ē) adj.
cor·rob′o·ra′tor n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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| Adj. | 1. | corroboratory - serving to support or corroborate; "collateral evidence" corroborative, substantiating, substantiative, validating, validatory, verificatory, verifying, confirmative, confirmatory, confirming, collateral supportive - furnishing support or assistance; "a supportive family network"; "his family was supportive of his attempts to be a writer" |
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