| a disease of the peripheral nerves caused by a deficiency of vitamin B1, characterized by pain in and paralysis of the extremities, and severe emaciation or swelling of the body. |

beriberi ber·i·ber·i (běr'ē-běr'ē)
n.
A disease caused by a deficiency of thiamine, endemic in eastern and southern Asia, and characterized by neurological symptoms, cardiovascular abnormalities, and edema. Also called endemic neuritis.