Yes, wetter is a Scrabble word!

Adjective

1. Covered or soaked with a liquid such as water

2. Containing moisture or volatile components

3. Supporting or permitting the legal production and sale of alcoholic beverages

4. Producing or secreting milk

5. Consisting of or trading in alcoholic liquor

6. Very drunk

Noun

1. A chemical agent capable of reducing the surface tension of a liquid in which it is dissolved

2. A workman who wets the work in a manufacturing process

3. Someone suffering from enuresis; someone who urinates while asleep in bed