oscillation
[noun]
Synonyms: swing, fluctuation, instability, vacillation, variation, wavering

[TahlilGaran] English Synonym Dictionary ▲

os‧cil‧la‧tion /ˌɒsəˈleɪʃən, ˌɒsɪˈleɪʃən $ ˌɑː-/ noun [uncountable and countable]

1. formal oscillations are frequent changes between two extreme amounts or limits
oscillation in/of
oscillations in the value of the dollar
oscillation between
oscillating between growth and decline

2. formal oscillations are frequent changes between one feeling or attitude and another:
The drug causes oscillations of mood in some people.

3. technical a regular movement of something from side to side:
the oscillations of a pendulum

4. technical a regular change in direction of an electrical current

[TahlilGaran] Dictionary of Contemporary English ▲