Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “reflex”

See all translations

reflex

noun uk   /ˈriː.fleks/ us  
[C] a physical reaction to something that you cannot control: I'm sorry I punched him, it was a reflex action/response.reflexes [plural] the ability to react quickly: Fighter pilots need good/fast reflexes.

reflex

adjective uk   /ˈriː.fleks/ specialized us  
A reflex angle is more than 180° and less than 360°.
Translations of “reflex”
in Spanish reflejo…
in French réflexe…
in German der Reflex, Reflex-……
in Chinese (Traditional) 反射動作, 反射作用, 本能反應…
in Russian рефлекс…
in Turkish tepki, tepke, refleks…
in Chinese (Simplified) 反射动作, 反射作用, 本能反应…
in Polish odruch…
(Definition of reflex from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of reflex?
Add Cambridge dictionaries to your browser to your website

More meanings of “reflex”

Definitions of “reflex” 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 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More