noun. The process of nourishing or being nourished, especially the process by which a living organism assimilates food and uses it for growth and for replacement of tissues.

noun. The science or study that deals with food and nourishment, especially in humans.

noun. A source of nourishment; food.

noun. The act or process by which organisms, whether vegetable or animal, absorb into their system their proper food and build it into their living tissues.

noun. That which nourishes; nutriment.

noun. In the broadest sense, a process or series of processes by which a living organism as a whole (or its component parts or organs) is maintained in its normal condition of life and growth.

noun. In a more limited sense, the process by which the living tissues take up, from the blood, matters necessary either for their repair or for the performance of their healthy functions.

noun. That which nourishes; nutriment.

noun. The organic process by which an organism assimilates food and uses it for growth and maintenance.

noun. a source of materials to nourish the body

noun. the scientific study of food and drink (especially in humans)

noun. (physiology) the organic process of nourishing or being nourished; the processes by which an organism assimilates food and uses it for growth and maintenance