1. 1570s, "act of searching closely," from M.Fr. recerche (1530s), from O.Fr. recercher "seek out, search closely," from re-, intensive prefix, + cercher "to seek for". Meaning "scientific inquiry" is first attested 1630s.
2. Related: Researched; researching. Phrase research and development is recorded from 1923.
2. Related: Researched; researching. Phrase research and development is recorded from 1923.
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