backache affecting the lumbar region or lower back; can be caused by muscle strain or arthritis or vascular insufficiency or a ruptured intervertebral disc
any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
the act of depriving of food or subjecting to famine; "the besiegers used starvation to induce surrender"; "they were charged with the starvation of children in their care"
a state of extreme hunger resulting from lack of essential nutrients over a prolonged period