(~s, oscillating, ~d)
1.
If an object ~s, it moves repeatedly from one position to another and back again, or keeps getting bigger and smaller. (FORMAL)
I checked to see if the needle indicating volume was oscillating.
VERB: V
oscillation (oscillations)
Some oscillation of the fuselage had been noticed on early flights.
N-VAR
2.
If the level or value of something ~s between one amount and another, it keeps going up and down between the two amounts. (FORMAL)
Oil markets ~d on the day’s reports from Geneva.
...an oscillating signal of microwave frequency.
= fluctuate
VERB: no passive, V, V-ing
oscillation (oscillations)
There have always been slight oscillations in world temperature.
N-VAR
3.
If you ~ between two moods, attitudes, or types of behaviour, you keep changing from one to the other and back again. (FORMAL)
The president of the Republic ~d between a certain audacity and a prudent realism.
VERB: no passive, V between n and n
oscillation
...that perpetual oscillation between despair and distracted joy.
N-UNCOUNT