Dicts.info 

English dictionary
English word:    
focal   ratio  

focal ratio

View results from:   Wordnet   |   Webster   |   Wiktionary   |   Easton



focal ratio in WordNet English dictionary

noun
  1. the ratio of the focal length to the diameter of a (camera) lens system
    focal ratio  f number  stop number  speed 
WordNet Lexical Database v3.0, © 2006 Princeton University



Babylon

Download Babylon translation software

English dictionary

This English dictionary allows you to look up English keywords in several large English dictionaries at the same time. These English dictionaries are currently available: WordNet English dictionary, Webster's unabridged English dictionary, English wiktionary and Easton's bible dictionary. This English dictionary contains about 300 000 unique keywords and about 600 000 unique definitions. English example sentences containing the entered keyword are also listed. More definitions at: Definitions.net



Privacy policy   Disclaimer   Terms of use  
Copyright © 2003-2024 Dicts.info.