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focal ratio

fo·cal ra·tio
F f

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [foh-kuh l rey-shoh, -shee-oh]
    • /ˈfoʊ kəl ˈreɪ ʃoʊ, -ʃiˌoʊ/
    • /ˈfəʊ.kəl ˈreɪ.ʃi.əʊ/
    • US Pronunciation
    • US IPA
    • [foh-kuh l rey-shoh, -shee-oh]
    • /ˈfoʊ kəl ˈreɪ ʃoʊ, -ʃiˌoʊ/

Definition of focal ratio words

  • noun focal ratio f-number. 1

Information block about the term

Origin of focal ratio

First appearance:

before 1925
One of the 11% newest English words
First recorded in 1925-30

Historical Comparancy

Parts of speech for Focal ratio

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

focal ratio popularity

This term is known only to a narrow circle of people with rare knowledge. Only 7% of English native speakers know the meaning of this word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

focal ratio usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

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