/ˈmenstrueɪt ||; ˈmɛnstrυˌet/verb [I] (formal 正式) (used about women) to lose blood once a month from the part of the body where a baby would develop (the womb) （指女性）行经，月经来潮 [SYN]A less formal way of saying this is to have a period. 不大正式的场合用have a period。 ➔menstruation /ˌmenstruˈeɪʃn ||; ˌmɛnstrυˈeʃən/ noun [U]