tremor UK /ˈtɹɛmə/US /ˈtɹɛmɚ/noun 3verb 1forms 3 noun3 •A shake, quiver, or vibration.She felt a tremor in her stomach before going on stage. •A rhythmic, uncontrollable shaking of all or part of the body due to partial muscle contractions.The optometrist has been losing patients ever since he developed tremors in his hand. •An earthquake.Did you feel the tremor this morning? verb1 •To shake or quiver excessively and rapidly or involuntarily; to tremble.The ground tremored under their big boots. — 2004 formstremored · tremoring · tremors