{"term":{"id":"14418","title":"acclimatisation","longtitle":"IUPAC Gold Book - acclimatisation","doi":"10.1351\/goldbook.14418","code":"14418","status":"current","synonym":"<em>synonyms<\/em>: acclimatation, acclimation","definitions":[{"id":1,"text":"Processes, including selection and adaptation, by which a population of microorganisms develops the ability to degrade a substance, or develops a tolerance to it.\nIn experimental systems, allowing an organism to adjust to its environment prior to undertaking a study.\nModification of biological processes or structures in the maintenance of homeostasis in response to change in some environmental quality such as temperature, salinity, light, radiation, or toxicant concentration. Note: It is an expression of phenotypic plasticity of individuals in response to a sublethal change in some environmental factor.","contexts":[],"links":[{"term":"adaptation","url":"https:\/\/goldbook.iupac.org\/terms\/view\/14711"},{"term":"homeostasis","url":"https:\/\/goldbook.iupac.org\/terms\/view\/14744"},{"term":"population","url":"https:\/\/goldbook.iupac.org\/terms\/view\/14932"}],"sources":["PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 833 (https:\/\/doi.org\/10.1351\/PAC-REC-08-07-09)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/14418\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/14418\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/14418\/plain"},"citation":"Citation: 'acclimatisation' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351\/goldbook.14418","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-07-24T21:06:00+00:00"}}