Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “powerful”

powerful

adjective (IMAGE SIZE)    /ˈpaʊə.fəl/ US  /ˈpaʊɚ-/
having the power to increase the size of an image of something that is very small or far away many times : You'd need an extremely powerful microscope to see something so small .Optics, microscopy and lasersEyesight, glasses and lenses
(Definition of powerful adjective (IMAGE SIZE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of powerful

Definitions of “powerful” in other dictionaries

Word of the Day

amicable

relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

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