cork
1. cork \'ko.(*)rk\ n [ME, cork, bark, prob. fr. Ar qurq, fr. L cortic-, cortex] 1a: the elastic tough outer tissue of a European oak (Quercus suber) used esp. for stoppers and insulation 1b: PHELLEM 2: a usu. cork stopper for a bottle or jug 3: an angling float 2. cork vt 1: to furnish or fit with cork or a cork 2: to blacken with burnt cork