v.1. To accustom some young mammal to nourishment other than something, as the mother's milk, obtained by suckling: The mother weaned the child from breast milk. The child was weaned from the breast.
2. To detach someone from something to which one is strongly habituated or devoted: I finally weaned myself from cigarettes. They were weaned from their drug habits at the rehabilitation center.
v.1. To accustom some infant mammal to take nourishment other than by suckling: The mother weaned the child on formula.
2. Slang To accustom someone to something from an early age. Used chiefly in the passive: Moviegoers who were weaned on the TV series will find the film to their liking.