[ trem-er, tree-mer ]
/ ˈtrɛm ər, ˈtri mər /


involuntary shaking of the body or limbs, as from disease, fear, weakness, or excitement; a fit of trembling.
any tremulous or vibratory movement; vibration: tremors following an earthquake.
a trembling or quivering effect, as of light.
a quavering sound, as of the voice.



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Origin of tremor

1325–75; Middle English < Latin: a trembling, equivalent to trem(ere) to tremble + -or -or1


trem·or·ous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for tremorous

  • Nanna grasped the hands held out to her, hanging her head on one side, and smiling her tremorous, bashful smile.

    The Helpmate|May Sinclair
  • Even now, putting out her tremorous feeler, she shrank back from his refusal.

    The Combined Maze|May Sinclair

British Dictionary definitions for tremorous

/ (ˈtrɛmə) /


an involuntary shudder or vibration, as from illness, fear, shock, etc
any trembling or quivering movement
a vibrating or trembling effect, as of sound or light
Also called: earth tremor a minor earthquake


(intr) to tremble

Derived forms of tremor

tremorless, adjectivetremorous, adjective

Word Origin for tremor

C14: from Latin: a shaking, from tremere to tremble, quake
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for tremorous

[ trĕmər ]


An involuntary trembling movement.
Minute ocular movement occurring during fixation on an object.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for tremorous

[ trĕmər ]

A relatively minor seismic shaking or vibrating movement. Tremors often precede larger earthquakes or volcanic eruptions.
An involuntary shaking or trembling of the head or extremities that can be idiopathic or associated with any of various medical conditions, such as Parkinson's disease.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.