Title: taxonomy Long Title: IUPAC Gold Book - taxonomy DOI: 10.1351/goldbook.15090 Status: current Definition Science applied to the allocation of biological names and the rules of naming. Note Classification (systematics) is the process of rank ordering of taxa according to presumptive evolutionary (phylogenetic) relationships. Related Terms - phylogenetic: https://goldbook.iupac.org/terms/view/14913 - systematics: https://goldbook.iupac.org/terms/view/15088 Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 954 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/15090/html - json: https://goldbook.iupac.org/terms/view/15090/json - xml: https://goldbook.iupac.org/terms/view/15090/xml Citation: Citation: 'taxonomy' 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.15090 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: 2026-06-30T18:10:16+00:00