Title: hydrophobicity Long Title: IUPAC Gold Book - hydrophobicity DOI: 10.1351/goldbook.HT06964 Status: current Definition Hydrophobicity is the association of non-polar groups or molecules in an aqueous environment which arises from the tendency of water to exclude non-polar molecules. Related Term - association: https://goldbook.iupac.org//terms/view/A00472 Source - PAC, 1997, 69, 1137. 'Glossary of terms used in computational drug design (IUPAC Recommendations 1997)' on page 1145 (https://doi.org/10.1351/pac199769051137) Other Outputs - html: https://goldbook.iupac.org/terms/view/HT06964/html - json: https://goldbook.iupac.org/terms/view/HT06964/json - xml: https://goldbook.iupac.org/terms/view/HT06964/xml Citation: Citation: 'hydrophobicity' 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.HT06964 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: 2026-05-18T09:21:08+00:00