For nurse practitioners, the average number of years in practice decreased from 9.3 in 2012 to 8.9 in 2013, indicating an increasing number of new graduates entering the profession. For physician assistants, that number dropped from 12.37 years in 2012 to 11.97 in 2013, a 3.23% decrease.
â¢ GESTATION (noun). The noun GESTATION has 3 senses: 1. the period during which an embryo develops (about 266 days in humans). 2. the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus. 3. the conception and development of an idea or plan.
Prenatal or antenatal development is the process in which a human embryo or fetus (or foetus) gestates during pregnancy, from fertilization until birth. Often, the terms fetal development, foetal development, or embryology are used in a similar sense.