Ex/ha-lā'tion, n.

n. [Lat. exhalatio, Pr. exhalacio, Sp. exhalacion, It. esalazione, Fr. exhalaison, exhalation. See infra.]

1. The act or process of exhaling, or sending forth fluids in the form of steam or vapor; evaporation.
2. That which is exhaled, or which rises in the form of vapor; fume or steam; effluvium; as, exhalations from the earth or from flowers, decaying matter, and the like.

Ye mists and exhalations that now rise From hill or steaming lake. Milton.