noun. The state or quality of being expansive; expansiveness.

noun. the fractional change in length or area or volume per unit change in temperature at a given constant pressure.

noun. expansiveness

noun. The formal notion of points moving away from one another under the action of an iterated function.

noun. a quality characterized by magnificence of scale or the tendency to expand

noun. the fractional change in length or area or volume per unit change in temperature at a given constant pressure

noun. a friendly open trait of a talkative person

"The transition can be detected as a marked change in the thermal expansivity and heat capacity of the material."

coefficient  communicativeness  grandness  impressiveness  magnificence  

coefficient of expansion