tremor
n. countablen. a small shaking movement in your body or the ground. You might feel a tremor in your hands if you are nervous or feel one in the earth during a small earthquake.
n. an involuntary quivering or shaking movement, typically resulting from physical weakness, emotional stress, or neurological disease. Also refers to a slight earthquake or seismic vibration.
She noticed a slight tremor in her hands as she spoke.
The doctor observed a persistent tremor in the patient's fingers while they were at rest, suggesting a neurological cause.
Seismologists recorded a series of minor tremors throughout the afternoon, though none were powerful enough to cause structural damage to the coastal infrastructure.
From Middle English tremour (“fright”), from Anglo-Norman tremour and Old French tremor, from Latin tremor.
Often used with the preposition 'in' to specify the body part affected, such as 'a tremor in his voice'.