| 单词 | premenstruum | 
| 释义 | premenstruumn. Medicine.   The stage of the menstrual cycle which precedes menstruation; the late luteal phase of the menstrual cycle. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive cycle > 			[noun]		 > menstrual cycle safe period1900 postmenstruum1910 premenstruum1910 mid-cycle1952 unsafe period1961 paramenstruum1966 rhythm1974 1910    Trans. N.Y. Obstetr. Soc. 1909–11 229  				In the third stage called by them [sc. Hitschmann and Adler] the premenstruum, the mucous membrane which is now thick and velvety, can be divided into a superficial, compact, and deeper, spongy layer. 1938    Jrnl. Amer. Med. Assoc. 21 May 1722/1  				During the premenstruum, the concentration of estrogen in the blood rises and affects the sympathetic nervous system. 1969    Sunday Times 14 Sept. 54/3  				Crimes of violence by women, most often involving their own families, are more often committed during the premenstruum. 1999    C. S. Pomerleau in  D. F. Seidman  & L. S. Covey Helping Hard-core Smoker iv. 76  				The mild increase in discomfort occurring during the premenstruum..is magnified by nicotine withdrawal. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). <  | 
	
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