- Abbreviation for "last menstrual period." By convention, pregnancies are dated in weeks starting from the first day of a woman's last menstrual period (LMP). If her menstrual periods are regular and ovulation occurs on day 14 of her cycle, conception takes place about 2 weeks after her LMP. A woman is therefore considered to be 6 weeks pregnant 2 weeks after her first missed period. A woman's obstetric date is different from the embryologic date (the age of the embryo). The obstetric date is about 2 weeks longer than the embryologic date.
* * *1. Abbreviation for left mentoposterior position; last menstrual period; latent membrane protein; low molecular weight proteins, under protein. 2. Gene product of Epstein-Barr virus (latent membrane protein).* * *large multifunctional protease; last menstrual period; latent membrane potential; left mentoposterior [fetal position]; lumbar puncture
* * *LMP abbr last menstrual period
* * *left mentoposterior (see mentoposterior position, under position); last menstrual period; latent membrane protein.
Medical dictionary. 2011.