| Term | Definition |
|---|
| Placenta | organ attached to the wall of the uterus and to the umbilical cord through which the embryo receives food and oxgen and gives off waste |
| Ovum | reproductive cell produced in the female sex organs of most animals |
| Embryo | organism in any of the various stages of its development after fertilization and before hatching or birth |
| Trimester | period or term consisting of three months |
| Prenatal | of or relating to the period prior to birth |
| Lactation | formation and secretion of milk by the mammary glands |
| Chromosomes | Spaghetti like structures located within the nucleus of each cell |
| Full term | relating to a pregnancy of a normal length |
| Obstetrician | a physician specializing in obstetrics |
| Gestation | period from conception to birth during which the unborn young are carried in the uterus; pregnancy |
| Identical twins | of two or more babies born at the same time, developing from a single fertilized egg cell, thus having the same hereditary material. |
| Pediatrician | doctor specializing in pediatrics |
| Umbilical cord | cordlike structure in mammals that connects the navel of the fetus to the placenta of the mother's womb, providing nourishment for and removing wastes from the fetus. |
| Spermatozoa | male reproductive cell; male gamete |
| Fetus | the developing young in the uterus, specifically the unborn offspring in the postembryonic period in humans from nine weeks after fertilization until birth |
| Malnutrition | poor nutrition because of an insufficient or poorly balanced diet or faulty digestion or utilization of foods. |
| Conception | formation of a viable zygote by the union of a spermatozoon and an ovum; fertilization |
| Uterus | the hollow muscular organ in female mammals in which the blastocyst normally becomes embedded and in which the developing embryo and fetus is nourished. |
| Gynecologist | a person skilled in gynecology |
| Amniotic fluid | the fluid within the amnion that surrounds the fetus and protects it from injury |
| Amniotic sac | the membranous sac that surrounds the embryo and fills with watery fluid as pregnancy advances. |
| Premature | occuring or developing before the usual or expected time. |
| Implantation | attachment of the blastocyst to the epithelial lining of the uterus, its penetration through the epithelium and in humans, its embedding in the stratum compactum of the endometrum, occuring six or seven days after fertilization of the oocyte. |
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