abortus fever
Concise Oxford English Dictionary © 2008 Oxford University Press:
abortus fever /əˈbɔːtəs/
▶noun Medicine the commonest form of undulant fever in humans, caused by the brucellosis bacterium.
– origin 1920s: from L. abortus ‘miscarriage’.
'abortus fever' also found in these Oxford entries:

