Final answer:
In GTPAL, 'T' or 'Term' refers to term births, which are births occurring after the beginning of the 37th week of gestation.
Step-by-step explanation:
In the GTPAL acronym used to assess a woman’s obstetric history, the 'T' or 'Term' refers to the number of term births that a woman has had. A term birth is defined as a birth that occurs after the beginning of the 37th week of gestation. During pregnancy, the baby's development progresses through various stages, including implantation of the blastocyst to the uterine wall and the division of pregnancy into three trimesters, each marking different developmental milestones. For example, the first trimester encompasses the initial development of the fetus's body structures, the second trimester continues organ and system development, and the third trimester features significant fetal growth leading to birth.