gummer

The English word “gummer” has 3 meanings listed here.

noun

A person or machine that applies gum.
A punch-cutting tool, or machine for deepening and enlarging the spaces between the teeth of a worn saw.
A cow or sheep etc. that has lost all of its teeth.

From gum + -er.

Keep exploring: in the interactive dictionary every word of a definition is a link. Open “gummer” there

The English dictionary on Glottosphere has 650,529 entries with a page. Browse the English dictionary.

Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.