rare. [f. as prec. + -ITY.] = EXPANSIVENESS.
1837. Carlyle, Mirabeau, Misc. Ess. (1888), V. 231. Offences (of elasticity or expansivity) have accumulated.
1838. Blackw. Mag., XLIV. 612/1. The expansivity and soaring heavenwardness of the gases have full play.