A wide stretch, usually of sea, sky, or land. / An amount of spread or stretch.

plural of expanse

(obsolete) Spread wide; outspread.

The fractional change in unit length per unit length per unit temperature change. / (building) A new addition. / A product to be used with a previous product.

Comprehensive in scope or extent. / Talkative and sociable. / Able to be expanded. / (mathematics) Exhibiting expansivity.

In an expansive manner

The state of being expansive.

expandable

plural of expansion

expansiveness / (mathematics) The formal notion of points moving away from one another under the action of an iterated function.