That emits vapour or steam, esp. under the influence of heat; steaming. Of water or a wet or damp surface or object. Also figurative. Obsolete.

That emits vapour or steam; steaming; full of moisture, esp. rank moisture. Now chiefly: giving off powerful and unpleasant smells or fumes; stinking.

That evaporates.

That emits steam or vapour.

Consisting of, abounding in, or emitting steam; resembling steam.

That exhales; in senses of the verb. literal and figurative.