- to make or become moist.
Origin of moisten
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for moistener
"I can't talk at all pretty quick if I don't git a moistener," said Fred piteously.Average Jones
Samuel Hopkins Adams
An old ink bottle filled with water and with some cotton stuffed in the neck serves as a moistener for the binding.
A moistener for postage stamps or envelopes can be easily made from a screw-top jar.
- to make or become moist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for moistener
1610s, agent noun from moisten (v.).
Online Etymology Dictionary, © 2010 Douglas Harper