1. Covered with adhesive gum
   "He licked the gummed envelope to seal it";
   - gummy

1. Exude or form gum
   "these trees gum in the spring"
    
2. Cover, fill, fix or smear with or as if with gum
   "if you gum the tape it is stronger"
    
3. Grind with the gums; chew without teeth and with great difficulty
   "the old man had no teeth left and gummed his food";
   - mumble
    
4. Become sticky
   "The old tape gummed up and wouldn't play"

See also: adhesive

Type of: apply, change, chew, exudate, exude, manducate [archaic], masticate, ooze, ooze out, put on, transude

Encyclopedia: Gum, Disease