http://www.businessdictionary.com/definition/impulse-goods.html
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Action Potentials
The definition of the word motive is to move or an inner drive impulse.
A wave is what is in water like when water is moving, and the scientific definition is a wave transvers energy from one place to another.
infinite positive impulse wave on each leading edge, infinite negative impulse wave on each trailing edge. the rest of the time it is 0V. this assumes an ideal square wave, which I must assume as you did not give rise/fall times or edge slew rates.
In an instinctive manner; by force of instinct; by natural impulse.
A microphone translates a sound wave into an electrical impulse, and a speaker translates an electrical impulse into a sound wave.
The p wave represents the first electrical impulse to the atria (from Bachmann's Bundle in the sinoatrial node).
Traveling wave of excitation is known as an action potential in nerve cells or an impulse in muscle cells. This wave allows for communication and coordination of cell activities in the body.
The letter "S" defines a wave pattern.
A sound wave's structure, by definition, is a longitudinal one. More specifically, it is "a longitudinal wave in an elastic medium."