wetting noun. ['wɛtɪŋ] ME.
[from WET verb + -ING¹.]
1. The action of WET verb; an instance of this, a soaking. ME.
■ Southey A thorough wetting under a succession of heavy showers.
■ P. Francis The ash swelled slightly as a result of the wetting.

2. A liquid used to wet or moisten something; esp. a small quantity of water or alcohol used to moisten the throat. Chiefly colloq. ME.

Comb.:
wetting agent a chemical that can be added to a liquid to reduce its surface tension and make it more effective in wetting things.

[TahlilGaran] English Dictionary ▲