From en.wikipedia.org:
[wiktionary] PHASE ANGLE may refer to:
- Phase (waves) , the angular displacement of a sinusoid from a reference point or time - Phasor angle , angular component of the complex number representation of a sinusoid - Analytic representation phase , instantaneous phase of an analytic signal representation - Phase angle (astronomy) , the angle between the incident light and reflected light
** See also
- Angle - Polar coordinate system [disambiguation]