Definify.com

SE'A-MAN

, [sea and man]

1. A sailor; a mariner; a man whose occupation is to assist in the management of ships at sea.

2. By way of distinction, a skillful mariner; also, a man who is well versed in the art of navigating ships. In this sense, it is applied both officers and common mariners.

3. Merman, the tale of the merman. [Little used.]