n. A woman who nourishes or suckles an infant; specifically, a woman who suckles the infant of another: commonly called a wet-nurse; also, a female servant who has the core of a child or of children.n. Hence, one who or that which nurtures, trains, cherishes, or protects.n. One who has the care of a sick or infirm person, as an attendant in a hospital.n. In the United States navy, a sick-bay attendant, formerly called loblolly-boy.n. The state of being nursed or in the care of a nurse: as, to put out a child to nurse.n. In horticulture, a shrub or tree which protects a young plant.n. In ichthyology, a name of various sharks of inactive habits, which rest for a long time or bask in the water.n. A blastozoöid. See the quotation.n. In brewing, a cask of hot or cold water immersed in wort. See the quotation.n. A nurse-frog.To suckle; nourish at the breast; feed and tend generally in infancy.To rear; nurture; bring up.To tend in sickness or infirmity; take care of: as, to nurse an invalid or an aged person.To promote growth or vigor in; encourage; foster; care for with the intent or effect of promoting growth, increase, development, etc.To caress; fondle; dandle.To Cheat.Synonyms Nourish, etc. See nurture, v. t.To act as nurse; specifically, to suckle a child: as, a nursing woman.n. In entomology, one of the worker-ants or worker-bees whose function in the colony is to care for the young brood.In billiards, formerly, to make a number of consecutive caroms, as rapid as dainty, off (balls) held but an inch or two apart.