I. ˈke-mi-kəl adjective
Date: 1576
1. : of, relating to, used in, or produced by chemistry or the phenomena of chemistry
chemical reactions
2.
a. : acting or operated or produced by chemicals
a chemical fire extinguisher
b. : detectable by chemical means
• chem·i·cal·ly -mi-k(ə-)lē adverb
II. noun
Date: 1739
1. : a substance obtained by a chemical process or producing a chemical effect
2. : drug 3