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a. Any of various viscous substances that are exuded by certain plants and trees and dry into water-soluble, noncrystalline, brittle solids.
b. A similar plant exudate, such as a resin.
c. Any of various adhesives made from such exudates or other sticky substance.
2. A substance resembling the viscous substance exuded by certain plants, as in stickiness.
a. Any of various trees, especially of the genera Eucalyptus and Liquidambar, that are sources of gum. Also called gum tree.
b. The wood of such a tree; gumwood.
4. Chewing gum.
v. gummed, gum·ming, gums
To cover, smear, seal, fill, or fix in place with gum.
1. To exude or form gum.
2. To become sticky or clogged.
To ruin or bungle: gum up the works.
[Middle English gomme, from Old French, from Late Latin gumma, variant of Latin gummi, cummi, from Greek kommi, perhaps from Egyptian ḳmj-t.]
The firm connective tissue covered by mucous membrane that envelops the alveolar arches of the jaw and surrounds the bases of the teeth. Also called gingiva.
tr.v. gummed, gum·ming, gums
To chew (food) with toothless gums.
[Middle English gome, from Old English gōma, palate, jaw.]
vb (tr, adverb)
1. to cover, dab, or stiffen with gum
2. informal to make a mess of; bungle (often in the phrase gum up the works)
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|Verb||1.||gum up - stick together as if with gum; "the inside of the pipe has gummed up"|