Definitions for "Gestational Age"
Keywords:  menstrual, lmp, fetus, weeks, unborn
Normally identified as the period between the conception and the birth of a baby. The average or normal gestational age of a mature fetus at birth is around 40 weeks. Gestational age categories include: preterm - less than 37 weeks; term - 37 to 42 weeks; post term - greater than 42 weeks.
The age of a baby, typically measured in weeks, both in utero and at birth.
Age of the conceptus. In humans, this may be assessed by medical history, physical examination, early immunologic pregnancy tests, radiography, ultrasonography, and amniotic fluid analysis.