- connected with chemistry
- changes in the chemical composition of the atmosphere
- produced by or using processes that involve changes to atoms or molecules
- chemical reactions/compounds
- chemical processes
- using or connected with chemicals
- a chemical plant (= a factory producing chemicals)
- chemical agents (= substances)
- the chemical industry
- a chemical attack
- Chemical treatment with chlorine provides some protection against contamination.
Word Originlate 16th cent.: from French chimique or modern Latin chimicus, chymicus, from medieval Latin alchymicus, from alchimia, from Arabic al-kīmiyā', from al ‘the’ + kīmiyā' (from Greek khēmia, khēmeia ‘art of transmuting metals’).
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chemical