To cause a baby or young animal to stop feeding on its mother’s milk and to start eating other food, especially solid food, instead. (Cambridge Dictionary)
When a baby or baby animal is weaned, its mother stops feeding it milk and starts giving it other food, especially solid food. (Collins Dictionary)
To accustom (a young child or animal) to take food otherwise than by nursing. (Merriam – Webster)
Accustom (an infant or other young mammal) to food other than its mother’s milk. (Oxford Dictionaries)
Weaning from mechanical ventilation.
How To Encourage Self-Weaning When The Time Is Right
Each child and family is different and will nurse for different lengths of time, but learning how to encourage self-weaning is one of the easiest ways to gradually wean your child.