TREMOR

[noun] [C] - a slight shaking movement in a person's body, esp. because of nervousness or excitement, or a slight earthquakeThe disease mostly affects people over 50, causing paralysis and uncontrollable tremors.There was a slight tremor in her voice.The tremor was centered just south of San Francisco and it was felt as far as 200 miles away.(figurative) A tremor of excitement went through the audience as he came on stage.(figurative) Stock-market tremors again shook bond prices.