rate of change of the phase angle
via Wikipedia infobox
A sphere rotating around an axis. Points farther from the axis move faster, satisfying ω = v / r.
In physics, angular frequency (symbol ω), also called angular speed and angular rate, is a scalar measure of the angle rate (the angle per unit time) or the temporal rate of change of the phase argument of a sinusoidal waveform or sine function (for example, in oscillations and waves). Angular frequency (or angular speed) is the magnitude of the pseudovector quantity angular velocity.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).