chem•i•calPronunciation: (kem'i-kul), [key]
a substance produced by or used in a chemical process.
2. chemicals, Slang.
narcotic or mind-altering drugs or substances.
of, used in, produced by, or concerned with chemistry or chemicals: a chemical formula; chemical agents.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.