Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

peak oil

noun [U]
 
 

Definition

the time after which there will start to be less oil availableEnvironmental issuesRubbish and wasteProtection and protectors
(Definition of peak oil noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Word of the Day

be under a cloud

to not be trusted or popular because people think you have done something bad

Word of the Day

Blog

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