- 1a viscous secretion of some trees and shrubs that hardens on drying but is soluble in water, and from which adhesives and other products are made. Compare with resin.
- a gum tree, especially a eucalyptus. See also sweet gum.
verb (gums, gumming, gummed)[with object]
Middle English: from Old French gomme, based on Latin gummi, from Greek kommi, from Egyptian kemai