The following is a partial list of definitions as stated by obstetrics and gynecology (OB/GYN) textbooks, dictionaries, and encyclopedias: Major OB/GYN textbooks 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."
Berikut ini adalah sebagian daftar definisi yang dinyatakan oleh berbagai buku teks dan kamus obstetri dan ginekologi (Obsgin) serta sumber-sumber lain: Major OB/GYN textbooks 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."