One who plays baseball, especially professional baseball.(noun)
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Use "baseball player" in a sentence
"John had been a college athlete, a baseball player whose days had, since childhood, begun with exercise and ended with Muscle Milk."
"Ask, seventeen-year-old Taylor Hooton, a baseball player from Plano, Texas, or twenty-four-year-old baseball player Rob Garibaldi, who both committed suicide due to depression brought on by steroids."
"His father was a sports instructor and former baseball player whom Twombly admiringly described as still doing back flips at the age of 40: he was known as "Cy" after the legendary pitcher "Cyclone" Young."