/ ˈɒsɪleɪt; NAmE ˈɑːs-/ verb [ v ]
1.
oscillate (between A and B) ( formal ) to keep changing from one extreme of feeling or behaviour to another, and back again
SYN swing :
Her moods oscillated between depression and elation.
2.
( physics ) to keep moving from one position to another and back again :
Watch how the needle on the dial oscillates.
3.
( physics ) ( of an electric current, radio waves, etc. ) to change in strength or direction at regular intervals
••
WORD ORIGIN
early 18th cent.: from Latin oscillat- swung, from the verb oscillare .