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Definition of chemical:

  1. A substance used for producing a chemical effect; a reagent.
  2. Pertaining to chemistry; characterized or produced by the forces and operations of chemistry; employed in the processes of chemistry; as, chemical changes; chemical combinations.


biochemical, synthetic, chemical substance, ersatz, made in the laboratory, alchemical, chemic, artificial, synthesized, petrochemical, psychochemical, actinic.

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