Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “infection”

See all translations

infection

noun [C or U] uk   /ɪnˈfek.ʃən/ us  

infection noun [C or U] (DISEASE)

B2 a disease in a part of your body that is caused by bacteria or a virus: a serious infection a throat infection Bandage the wound to reduce the risk of infection.
More examples

infection noun [C or U] (COMPUTERS)

an act of passing harmful programs into a computer or file, or the harmful programs themselves: You only have to open an attachment to pass the infection from computer to computer.
Translations of “infection”
in Korean 감염…
in Arabic عَدْوَى…
in Portuguese infecção…
in Catalan infecció…
in Japanese 感染, 伝染病…
in Italian infezione…
in Chinese (Traditional) (由細菌或病毒造成的身體部位的)感染…
in Russian инфекция…
in Turkish enfeksiyon, hastalık…
in Chinese (Simplified) (由细菌或病毒造成的身体部位的)感染…
in Polish infekcja, zakażenie…
(Definition of infection from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of infection?
Add Cambridge dictionaries to your browser to your website

Definitions of “infection” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More