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.
A shake, quiver, or vibration.
An earthquake.
A rhythmic, uncontrollable shaking of all or part of the body due to partial muscle contractions.
To shake or quiver excessively and rapidly or involuntarily; to tremble.