the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause;
"the women were sickly and subject to excessive menstruation" "a woman does not take the gout unless her menses be stopped" "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"
例句
用作名词(n.)
Menstruum crystal is widely used in cephalosporin production in view of its stability and high purity.溶媒结晶由于其稳定性和纯度高被广泛用于头孢菌素生产中。
The time having inspected different menstruum , the temperature , reaction , impact of oxidant dosages over oxide reaction.考察了不同溶剂，温度，反应时间，氧化剂用量对氧化反应的影响。
The merits and demerits of two kinds of devices in which extracted available compositions in Ginkgo biloba leaves were compared by having used different menstruum.摘要通过使用不同溶剂比较了两种装置提取银杏叶中有效成分的优缺点。
