Historically, the definition of prematurity was 2500 grams (about 5 1/2 pounds) or less at birth. The current World Health Organization definition of prematurity is a baby born before 37 completed weeks of gestation, counting from the first day of the last menstrual period (LMP).
Just before the start of menstruation. As in a premenstrual headache.
- Premenstrual dysphoric disorder
An unusually severe form of premenstrual syndrome characterized by drastic mood swings, anger, depression, irritability, tension, sleep and appetite changes, fatigue, and physical problems such as pain or bloating. Abbreviated PMDD. Symptoms generally begin the week before menstruation and end a few days after menstruation has begun. Treatment can involve the use of antidepressant medications […]
- Premenstrual syndrome
A combination of physical and mood disturbances that occur in the last half of a woman’s menstrual cycle after ovulation which normally end with the onset of the menstrual flow. Physical features of the premenstrual syndrome (PMS) include breast tenderness and bloating. Psychological changes include anger and depression. Monthly chemical changes may be responsible for […]
Short and slangy for a premature baby. A preterm infant. Also often spelled (for obscure reasons) preemie.