To accustom and reconcile, as a child or other young animal, to a want or deprivation of mother's milk; to take from the breast or udder; to cause to cease to depend on the mother nourishment.
- To accustom (the young of a mammal) to take nourishment other than by suckling.
- To detach from that to which one is strongly habituated or devoted: She weaned herself from cigarettes.
- To accustom to something from an early age. Often used with on: "The northerners among the refugees ... were weaned on harsh weather and infertile soils and are known for their rigorous work ethic” ( Lowell Weiss).