n. 呼气, 蒸发, 散发物

[医] 呼出

Exhalation \Ex`ha*la"tion\, n. [L. exhalatio: cf. F. exhalaison,
exhalation.]
1. The act or process of exhaling, or sending forth 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; emanation; as,
exhalations from the earth or flowers, decaying matter,
etc.

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

3. A bright phenomenon; a meteor. [archaic]
[1913 Webster +PJC]

I shall fall
Like a bright exhalation in the evening. --Shak.