A substance obtained from various plants, used in the manufacture of adhesives, inks, and other products. The artist used gum arabic to mix with watercolors for a smoother application.
A sweetened and flavored insoluble plastic material used for chewing. She offered him a piece of gum after their meal.
The firm tissue that surrounds the teeth and covers the jawbone. The dentist advised him to take better care of his gums to prevent gingivitis.
Any of various trees that exude gum, especially a eucalyptus. The koala climbed a nearby gum to feed on its leaves.