1. A deep, broad-mouthed vessel of earthenware or glass, for holding fruit, preserves, etc, or for ornamental purposes; as, a jar of honey; a rose jar.
2. The measure of what is contained in a jar; as, a jar of oil; a jar of preserves. Bell jar, leyden jar.
Origin: f. Jarre, sp. Jarra, from ar. Jarrah ewer; cf. Pers. Jarrah.