Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “morning sickness”

morning sickness

noun [U]    /ˈmɔr·nɪŋ ˌsɪk·nəs/
a feeling of wanting to vomit soon after waking , experienced by some women, esp . early in pregnancy
(Definition of morning sickness noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of morning sickness

Definitions of “morning sickness” in other dictionaries

Translations of “morning sickness”

Word of the Day


the art and knowledge involved in preparing and eating good food

Word of the Day


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