Definitions for f-number

• Definition
• Anagrams (122)

f-number f-number

Spelling: [ef-nuhm-ber]

IPA: /ˈɛfˌnʌm bər/

F-Number is a 8 letter English word.

You can make 122 anagrams from letters in f-number (-befmnru).

Definitions for f-number

noun

1. a number corresponding to the ratio of the focal length to the diameter of a lens system, especially a camera lens. In f /1.4, 1.4 is the f-number and signifies that the focal length of the lens is 1.4 times as great as the diameter. /, f/, f, f: Abbreviation: f.

Origin of f-number

First recorded in 1890-95