acceleration

Pronunciation

• enPR: əksĕlərā'shən IPA ^(key): /ək.sɛl.əˈreɪ.ʃən/
• SAMPA: /@ksEl@"reIS@n/

• Audio (US)

  (file)

• Hyphenation: ac‧cel‧er‧a‧tion

Noun

Singular acceleration

Plural accelerations

(countable & uncountable)

1. (uncountable) Acceleration is a change in speed.

   As the plane took off, the acceleration pressed her into her seat.

2. (countable) Acceleration is by how much a speed or velocity goes up.
3. Derivative for velocity, has formula $a=\lim _{\Delta x\to 0}{\frac {\Delta v}{\Delta t}}$ .

Related words

• accelerate