GUM
Source: 566, 567
gum. Gum, n. the juce of trees which becomes hard, is insipid and soluble in water, the substance inclosing the teeth
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Gum (?), n. [[OE. gome, AS. gama palate; akin Co G. gaumen, OHG. goumo, guomo, Icel. g�mr, Sw. gom; cf. Gr. � to gape.]] The dense tissues which invest the teeth, and cover the adjacent parts of the jaws. Gum rash (Med.), strophulus in a teething child; red gum. — Gum stick, a smooth hard substance for children to bite upon while teething.