Term: Larmor angular frequency https://doi.org/10.1351/goldbook.08375 Definition: Frequency at which nuclei with a nuclear spin precess (Larmor precession) around the direction of an external magnetic induction \(\boldsymbol{B}_{0}\). \(\boldsymbol{\omega}_{\rm{L}} = -\gamma \boldsymbol{B}_{0}\), where \(\gamma\) is the magnetogyric ratio of the nucleus. Link: Related Term: larmor precession (http://doi.org/10.1351/goldbook.08376). Source: PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 695 (https://doi.org/10.1515/pac-2019-0203) Citation: 'Larmor angular frequency' 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.08375 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.