CORK, noun [G., Latin , bark, rind, shell, crust.]

1. A glandiferous tree, a species of Quercus, growing in Spain and Portugal, having a thick, rough, fungous, cleft bark.

2. The outer bark of the tree, or epidermis, of which stopples for bottles and casks are made. This outer bark is taken off, and a new epidermis is formed, which, in six or seven years, becomes fit for use. This bark is also burnt to make a kind of light black, called Spanish black.

3. A stopple for a bottle or cask, cut out of cork

CORK, verb transitive To stop bottles or casks with corks; to confine or make fast with a cork