Definition of Expansivity:

  1. The amount a material expands or contracts per unit length due to a one-degree change in temperature.

  2. Fractional increase in the length (linear expansivity), area (superficial expansivity), or volume (volume expansivity) of a solid, per degree to its corresponding value at a standard temperature. Also called coefficient of expansion.

How to use Expansivity in a sentence?

  1. They provide resistance to frictional wear, corrosion resistance, nonmagnetic characteristics and, in some alloys, low thermal expansivity at ambient temperatures.

Meaning of Expansivity & Expansivity Definition