nausea

[Lat. nausea, nausia, from Greek nausia =sea-sickne , from naus =a ship.] Pathol .: A sick feeling which may go on to vomiting, caused by the digestive system or the brain being in an abnormal state. In hysteria and preg nancy, irritation or tumors of the abdominal the pelvic viscera may produce it, as may also the early stage of zymotic disease, or epilepsy, and diseases of the brain.