accelerando
1. [ adjective ] (music) gradually increasing in tempo
Related terms: increasing
2. [ adverb ] (music) with increasing speed
Examples:

"here you must play accelerando"

Related terms: music
3. [ noun ] (music) a gradually increasing tempo of music
Examples:

"my ear will not accept such violent accelerandos"

Related terms: tempo
Similar spelling:   accelerator
  accelerated
  acceleratory
  acceleration
  accelerate
  accelerative
  accelerating
  accelerometer