PLANT'ER, n. One that plants, sets, introduces or establishes; as a planter of maiz; a planter of vines; the planters of a colony.1. One that settles in a new or uncultivated territory; as the first planters in Virginia.2. One who owns a plantation; used in the West Indies and southern states of America.3. One that introduces and establishes. The apostles were the first planters of christianity.