- a sticky, colloidal carbohydrate found in certain trees and plants, which dries into an uncrystallized, brittle mass that dissolves or swells in water
- any similar plant secretion, as resin
- any plant gum processed for use in industry, art, etc.
- an adhesive, as on the back of a postage stamp
- any of various sticky or viscous substances or deposits
- gum tree
- the wood of a gum tree
- Now Rare
- pure rubber
- [pl.] rubber overshoes
- chewing gum
- Dial. a hollowed gum log used as a trough, etc.
Origin of gumMiddle English gomme from Old French from Late Latin gumma from Classical Latin gummi, cummi from Classical Greek kommi from Egyptian qmyt
transitive verbgummed, gum′ming
- to secrete or form gum
- to become sticky or clogged