Definitions for oscillateˈɒs əˌleɪt
Random House Webster's College Dictionary
os•cil•lateˈɒs əˌleɪt(v.)-lat•ed, -lat•ing.
(v.i.)to swing or move to and fro, as a pendulum does.
to vary or vacillate between differing beliefs, conditions, etc.
to vary between maximum and minimum values, as of a cycle or mathematical function.
(v.t.)to cause to move to and fro; vibrate.
Origin of oscillate:
1720–30; < L oscillāre to swing
hover, vibrate, vacillate, oscillate(verb)
be undecided about something; waver between conflicting positions or courses of action
"He oscillates between accepting the new position and retirement"
move or swing from side to side regularly
"the needle on the meter was oscillating"
To swing back and forth, especially if with a regular rhythm.
A pendulum oscillates slower as it gets longer.
To vacillate between conflicting opinions, etc.
The mood for change oscillated from day to day.
To vary above and below a mean value.