<prompt> Weight of abortus is -700-900 gms1-1.2 kg500 gms500-750 gms  <response>: Ans. is c i.e., 500 gms The National Center for Health Statistics defines an abortus as fetus or embryo removed or expelled from the uterus during the first half of gestation--20 weeks or less, or in the absence of accurate dating criteria, born weighing 500 g. 