marasmus

A progressive wasting of the body, occurring chiefly in young children and associated with insufficient intake or malabsorption of food.

In pathology, a wasting of the flesh.

A wasting of flesh without fever or apparent disease; a kind of consumption; atrophy; phthisis.

progressive atrophy of the aged.

Any wasting disease, especially a severe loss of body weight, in children, caused by malnutrition or the inability to digest protein

extreme malnutrition and emaciation (especially in children); can result from inadequate intake of food or from malabsorption or metabolic disorders