Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “Lewis acid”

Lewis acid

noun [C]  /ˈlu·əs ˈæs·ɪd/ us  
chemistry a substance that can receive a pair of electrons from a base (= chemical substance)
(Definition of Lewis acid from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of Lewis acid?
Add Cambridge dictionaries to your browser to your website

Word of the Day

sling

to throw or drop something carelessly

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