| 单词 | premenstruum | 
| 释义 | Definition of premenstruum in English:premenstruumnoun priːˈmɛnstrʊəm Medicine 
 OriginEarly 20th century. From pre- + menstruum, after premenstrual. Definition of premenstruum in US English:premenstruumnounpriːˈmɛnstrʊəm Medicine 
 OriginEarly 20th century. From pre- + menstruum, after premenstrual.  | 
	
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