Term: oligomer https://doi.org/10.1351/goldbook.O04283 Definition: A substance composed of oligomer molecules. An oligomer obtained by telomerization is often termed a telomer. Related Terms: 1) oligomer molecules (http://doi.org/10.1351/goldbook.O04286). 2) telomerization (http://doi.org/10.1351/goldbook.T06260). Source: PAC, 1996, 68, 2287. 'Glossary of basic terms in polymer science (IUPAC Recommendations 1996)' on page 2289 (https://doi.org/10.1351/pac199668122287) Citation: 'oligomer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.O04283 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. 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.