Definitions.
In the construction of this Title [R. S., 4501-4613], every person having the command of any vessel belonging to any citizen of the United States shall be deemed to be the "master" thereof; and every person (apprentices excepted) who shall be employed or engaged to serve in any capacity on board the same shall be deemed and taken to be a "seaman;" and the term "vessel" shall be understood to comprehend every description of vessel navigating on any sea or channel, lake or river, to which the provisions of this Title may be applicable, and the term "owner" shall be taken and understood to comprehend all the several persons, if more than one, to whom the vessel shall belong. (R. S., 4612.)