A Dictionary for Science: Compiled by A. J. Noice, BSc. Hons. Forensic Science, and edited by W. K. Griffiths, BSc. Hons. Forensic Science and Biology.
Archaic Chemical terms: Glossary of archaic chemical terms with references to related literature.
Chemical Safety Information: Glossary of terms relating to chemical safety and chemistry in general.
Chemicool.com: Chemistry Dictionary: Created by David D. Hsu of the Massachusetts Institute of Technology and his collaborators.
Chemistry & Environmental Dictionary: Contains definitions for many chemistry, environmental and other related technical terms and acronyms.
Chemistry Glossary: Searchable index of chemistry terms.
Combinatorial and Medical Chemistry Glossary: By Combinatorial Chemistry Review.
General Chemistry Online: Glossary: Searchable and browsable by topic or letter. Part of General Chemistry Online! by Fred Senese at Frostburg State University.
Physical Organic Chemistry Terms: Indexed glossary of terms collected by the International Union of Pure and Applied Chemistry.
UNCChem Glossary: Basic formulae and words used in chemistry.