/ËÉkËstraekt/. ËÉkËstrÃ¦kt. noun plural. Extracts'learner s definition OF. extract. : 1 a substance that you get from something by using a machine or. [chemicals]. Noncount the recipe calls for a tablespoon of vanilla. [+] extract more [-] examples hide [+] Examples example [-] Sentences hide. [examples]. count
amplitude definition. In physics, the height of a crest (or the depth of a trough) of a wave.
The wavelength of a wave is the distance between a point on one wave and the same point on the next wave. It is often easiest to measure this from the crest of one wave to the crest of the next wave, but it doesn't matter where as long as it is the same point in each wave.s waves travel, they set up patterns of disturbance. The amplitude of a wave is its maximum disturbance from its undisturbed position. Take care, the amplitude is not the distance between the top and bottom of a wave.