tremolo Meaning, Definition & Usage

  1. noun (music) a tremulous effect produced by rapid repetition of a single tone or rapid alternation of two tones
  2. noun vocal vibrato especially an excessive or poorly controlled one

WordNet

Tre"mo*lo noun
Etymology
It. Cf. Tremulous.
Definitions
  1. (Mus.) (a) The rapid reiteration of tones without any apparent cessation, so as to produce a tremulous effect. (b) A certain contrivance in an organ, which causes the notes to sound with rapid pulses or beats, producing a tremulous effect; -- called also tremolant, and tremulant.

Webster 1913