Learner's definition of MOIST
[or more moist; most moist]
1 : slightly or barely wet : not completely dry
I love cookies when they are moist and chewy.
The pork chops were tender and moist.
a moist and spongy chocolate cake
The plant grows best in direct sunlight and with rich, moist soil.
She dabbed her moist eyes with a handkerchief.
2 : having a lot of moisture in the air : humid
Fog is formed when warm moist air moves over a cold surface.
moist tropical heat
The eggs will hatch sooner in warm, moist conditions.
moist suggests a slight wetness that is usually pleasant or desirable. damp suggests that the wetness of something makes it unpleasant to touch. dank suggests a cold, unpleasant wetness that may be harmful to a person's health.