Definition of Arctic Oscillation
climatology
: the recurring movement of high pressure systems in the atmosphere from the middle latitudes to the polar latitudes and back
—abbreviation AO
— compare north atlantic oscillation, southern oscillation
Test Your Vocabulary
The Great British Vocabulary Quiz
-
- Named after Sir Robert Peel, what are British police called?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share Arctic Oscillation
Time Traveler for Arctic Oscillation
The first known use of Arctic Oscillation was in 1998
See more words from the same year