A wavering; unsteadiness.
In medicine, a wave-like motion or undulation of a fluid in a natural or abnormal cavity (e.g. pus in an abscess), which is felt during palpation or percussion.
A motion like that of waves; a moving in this and that direction.
Something uncertain or ambiguous.
Doubt; the condition of being uncertain or without conviction.
A parameter that measures the dispersion of a range of measured values.