preˈmenstruum Med.
[f. pre- B. 1 + menstruum.]
The stage of the menstrual cycle which precedes menstruation.
| 1910 Trans. N.Y. Obstetr. Soc. 1909–11 229 In the third stage called by them [sc. Hitchmann & 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. 1977 Lancet 24/31 Dec. 1330/2 It is common knowledge that exacerbations of acne and skin allergies occur during the premenstruum. |