Pŏst'mās-ter, n.

n. The master of a post; as, (a.) One who has charge of a station for the accommodation of travelers; one who supplies post-horses. (b.) One who has charge of a post-office, and the distribution and forwarding of mails.

In Merton College, Oxford, the scholars who are supported on the foundation are called postmasters or portionists (portionistæ). Oxf. Guide.