PMSBrE/ˌpiː em ˈesː/NAmE/ˌpiː em ˈesː/ (also PMTBrE/ˌpiː em ˈtiː/NAmE/ˌpiː em ˈtiː/BrE) noun[U]physicalandemotionalproblemssuchaspainandfeelingdepressedthatmanywomenexperiencebeforetheirperiod (= flowofblood) eachmonth. PMS/PMTareabbreviationsfor'premenstrualsyndrome/tension'.月经前综合征,经前紧张症(又称 PMT,全写为 premenstrual syndrome 或 premenstrual tension)➡ see alsopremenstrual