CHEMICAL
chemical, chemic
(adjective) relating to or used in chemistry; “chemical engineer”; “chemical balance”
chemical
(adjective) of or made from or using substances produced by or used in reactions involving atomic or molecular changes; “chemical fertilizer”
chemical, chemical substance
(noun) material produced by or used in a reaction involving changes in atoms or molecules
Source: WordNet® 3.1
Etymology
Adjective
chemical (not comparable)
Of or relating to chemistry.
Of or relating to a material or processes not commonly found in nature or in a particular product.
(obsolete) Of or relating to alchemy.
Noun
chemical (plural chemicals)
(chemistry, sciences) Any specific chemical element or chemical compound or alloy.
(colloquial) An artificial chemical compound.
(slang) An addictive drug.
Usage notes
• The noun is frequently used in a slang and more specific non-technical way (2nd and 3rd definition) by the general public. Chemists and those who understand chemistry may gravitate toward the first, but the term "substance" is preferred usage.
Anagrams
• Michalec, alchemic
Source: Wiktionary
Chem"ic*al, a.
Definition: Pertaining to chemistry; characterized or produced by the
forces and operations of chemistry; employed in the processes of
chemistry; as, chemical changes; chemical comnbinations. Chemical
attraction or affinity. See under Attraction.
Chem"ic*al, n.
Definition: A substance used for producing a chemical effect; a reagent.
Source: Webster’s Unabridged Dictionary 1913 Edition