- the player whose position is first base.
Origin of first baseman
Examples from the Web for first baseman
Historical Examples of first baseman
Plucky captain and first-baseman of the Harvard nine looks for a victory over the Tigers.The Arrival of Jimpson
Ralph Henry Barbour
First-baseman started back for it, and the pitcher ran to cover first.
Billings hit a short grounder to first-baseman who scooped it up and tagged the bag before the batsman was half-way toward it.