In physiological use. Formerly spec.; now contextual. †virtue of expulsion = expulsive virtue at expulsive, adj. 1.

The sudden ejection or emission (of seed, fluids, etc.) from the animal or vegetable system. spec. the discharging of the male sperm.

= expulsion, n.

Exhalation through the skin or surface of the body; formerly, also, evaporation. Also concrete matter transpired.