Open English Wordnet

Nouns

(n)focal ratio, f number, stop number, speedthe ratio of the focal length to the diameter of a (camera) lens system

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Open English Wordnet is derived from Princeton WordNet by the Open English Wordnet Community and released under the Creative Commons Attribution (CC-BY) 4.0 License. Further information about Wordnet. We welcome any corrections, improvements or other contributions at GitHub. A full list of contributors is available on GitHub.

This interface was created by John P. McCrae at the Data Science Institute, University of Galway (GitHub). Development of this interface is supported by Science Foundation Ireland as part of the Insight Centre for Data Analytics and the European Union's Horizon 2020 research and innovation programme under grant agreement No 731015 (ELEXIS).

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