Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “Prozac”


noun [U] uk   /ˈprəʊ.zæk/ us    /ˈproʊ-/ trademark
a drug that is used to treat depression (= a mental illness that makes you feel extremely unhappy) and anxiety (= a mental illness that makes you feel very worried)Specific medicines and drugsSpecific types of drug
(Definition of Prozac from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of Prozac?
Add Cambridge dictionaries to your browser to your website

Definitions of “Prozac” in other dictionaries

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