nitrous oxide definition, meaning - what is nitrous oxide in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “nitrous oxide”

See all translations

nitrous oxide

noun [U] uk   /ˌnaɪ.trəsˈɒk.saɪd/  us   /-ˈɑːk-/ (informal laughing gas) specialized
a type of gas with a sweet smell that is used as a weak anaesthetic (= substance that stops pain), especially by dentists
(Definition of nitrous oxide from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of nitrous oxide?
Add Cambridge dictionaries to your browser to your website

Word of the Day

generous

willing to give money, help, kindness, etc., especially more than is usual or expected

Word of the Day

May I sit here? Asking for and giving permission.

by Liz Walter,
June 03, 2015
We often find ourselves in situations where we need to ask for permission or to reply to people who ask us for permission. Here are some words and phrases to help you do this in a natural way. The simplest way to ask for permission is with the modal verb can: Can

Read More 

ebolaphobia noun

June 01, 2015
irrational fear of the (spread of) the Ebola virus Ebolaphobia Going Viral

Read More