Past tense of replicate; to make an exact copy or reproduction of something. In science, to repeat an experiment to verify results.
Latin 'replicatus', past participle of 'replicare' meaning 'to fold back' or 'repeat', from 're-' (back) + 'plicare' (to fold). The modern meaning of exact copying emerged in the 16th century.
Replication is the cornerstone of scientific credibility - the idea that true discoveries must be reproducible by others. Interestingly, the original 'folding back' meaning still applies metaphorically, as we fold back time to recreate the same conditions and results.
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