An Etymological Dictionary of Astronomy and Astrophysics
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Not a linear function of the relevant variables.
Containing a variable with an exponent other than one; opposite of → linear.

→ non-; → linear.

An electronic device whose output is not directly proportional to its input. For example, in a → diode the current is a nonlinear function of the voltage; its voltage-current characteristics do not obey → Ohm's law.

→ nonlinear; → device.

Same as → chaos.

→ nonlinear; → dynamics.

The instability of a physical or mathematical system that arises from the nonlinear nature of relevant variables and their interactions within the system.

→ nonlinear; → instability.

A system in which small changes can result in large effects, and large changes in small effects.

→ nonlinear; → system.

The property, condition, or state of being → nonlinear.

→ non-; → linearity.