reägent

Noun

 * 1) * 1871, Richard Soule, A Dictionary of English Synonymes and Synonymous or Parallel Expressions, page 406/1 s.v. “Test, n.”:
 * Test, n.…(Chem.) Reägent.
 * 1) * ibidem, page 26:
 * Dr. Frankland…having submitted to analysis different reägents tried or proposed, has found that on an average they extract from sewage water only 37 per cent. of the organic nitrogen contained in it.
 * 1) * ibidem, page 26:
 * Dr. Frankland…having submitted to analysis different reägents tried or proposed, has found that on an average they extract from sewage water only 37 per cent. of the organic nitrogen contained in it.