milk fever
noun
mass noun
1- an acute illness in female cows, goats, etc. that have just produced young, caused by calcium deficiency（牛羊等）泌乳热; 分娩热。
1.1
- a fever in women caused by infection after childbirth, formerly supposed to be due to the swelling of the breasts with milk生乳热; 轻性产褥热。