Share this entry

Panthalassa Line breaks: Pan¦tha|lassa
Pronunciation: /ˌpanθəˈlasə/

Definition of Panthalassa in English:

A universal sea or single ocean, such as would have surrounded the postulated supercontinent of Pangaea.


Late 19th century: from pan- 'all' + Greek thalassa 'sea'.

Definition of Panthalassa in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day haughty
Pronunciation: ˈhɔːti
arrogantly superior and disdainful