last menstrual period
41Gestational age — This article is about gestational age in humans. For information on gestational age in non human animals, see gestation. Birth weight and gestational age Classifications Large for gestational age: Wei …
42Naegele rule — a method used to estimate the probable date of the onset of labour: nine months and seven days are added to the date of the first day of the last menstrual period. A correction is required if the woman does not have 28 day menstrual cycles. F. K …
43Naegele rule — a method used to calculate the estimated date of delivery: nine months and seven days are added to the date of the start of the last menstrual period. A correction is required if the woman does not have 28 day menstrual cycles. [F. K. Naegele… …
44postmature — Referring to a fetus that remains in the uterus longer than the normal gestational period; i.e., longer than 42 weeks (288 days) in humans. * * * post·ma·ture mə t(y)u̇(ə)ralso chu̇(ə)r adj remaining in the uterus for longer than the normal… …
45term — 1. A definite or limited period. 2. A name or descriptive word or phrase. SEE ALSO: terminus, t. infant. [L. terminus, a limit, an end] * * * terminal * * * term tərm n the time at which a pregnancy of normal length terminates <had her baby at …
46Pregnancy (mammals) — For pregnancy in humans, see pregnancy. A pregnant lioness. In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a… …
47Human chorionic gonadotropin — chorionic gonadotropin, alpha polypeptide Identifiers Symbol CGA Alt. symbols FSHA, GPHa, GPHA1, HCG, LHA, TSHA …
48preterm birth — (premature birth) birth of a baby before 37 weeks (259 days) of gestation (calculated from the first day of the mother s last menstrual period); a birth at less than 23 weeks is at present incompatible with life. Such factors as pre eclampsia,… …
49gestation — n. the period during which a fertilized egg cell develops into a baby that is ready to be delivered. Gestation averages 266 days in humans (or 280 days from the first day of the last menstrual period). See also: pregnancy …
50pregnancy — n. the period during which a woman carries a developing fetus, normally in the uterus (compare ectopic pregnancy). Pregnancy lasts for approximately 266 days, from conception until the baby is born, or 280 days from the first day of the last… …
