Meaning of AMPLITUDE in English

AMPLITUDE

■ noun

1》 Physics the maximum extent or magnitude of a vibration or other oscillating phenomenon, measured from the equilibrium position or average value.

2》 breadth, range, or magnitude.

3》 Astronomy the angular distance of a celestial object from the true east or west point of the horizon at rising or setting.

Origin

C16: from L. amplitudo , from amplus 'large, abundant'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.