ABORTUS FEVER Meaning of ABORTUS FEVER in English [ ə'bɔ:təs ]■ noun Medicine the commonest form of undulant fever in humans, caused by the brucellosis bacterium.Origin1920s: from L. abortus 'miscarriage'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004