Meaning of AMPLITUDE in English

n.1 a Physics the maximum extent of a vibration or oscillation from the position of equilibrium. b Electr. the maximum departure of the value of an alternating current or wave from the average value.

2 a spaciousness, breadth; wide range. b abundance.

Phrases and idioms:

amplitude modulation Electr.

1. the modulation of a wave by variation of its amplitude.

2 the system using such modulation.

Etymology: F amplitude or L amplitudo (as AMPLE)

Oxford English vocab.      Оксфордский английский словарь.