Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “CF”


noun [U] specialized
  /ˌsiːˈef/    /ˈsiːˈef/ abbreviation for cardiac failure: the situation when the heart stops working correctly or stops completelyDisorders and diseases of the heart and blood
  //    // written abbreviation for cystic fibrosisRespiratory disorders
  //    // written abbreviation for cerebrospinal fluid: the fluid that surrounds the brain and spinal cordSubstances and structures in the body
(Definition of CF noun from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of CF?
Add Cambridge dictionaries to your browser to your website

More meanings of “CF”

Definitions of “CF” in other dictionaries

Translations of “CF”

Word of the Day


like hops (= dried fruit used to make beer)

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More