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Definition of "chemical" []

  • Of or relating to chemistry. (adjective)
  • Of or relating to the properties or actions of chemicals. (adjective)
  • A substance with a distinct molecular composition that is produced by or used in a chemical process. (noun)
  • A drug, especially an illicit or addictive one. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "chemical" in a sentence
  • "In a second experiment, the HML team mimicked a chemical pollutant challenge by injecting blue crabs with a chemical** known to inhibit oxidative phosphorylation, a metabolic process that manufactures energy."
  • "The term chemical was used by the Lebanese Association for Human Rights. text was changed per Mirvat's request"
  • "By the term chemical properties we have reference to the chemical composition of the soil, the chemical changes which take place in the soil, and the conditions which influence these changes."