gestation
The period of time a baby is carried in the uterus; full-term gestation is between 38 and 42 weeks (counted from the first day of the last menstrual period).
gestational age
The age of the fetus while in the uterus, counted from the first day of the last menstrual period.
grasping reflex
A newborn's reflexive grab at an object, such as a finger, when it touches her hand. Her hold may be strong enough for you to pull her to a sitting position; the reflex lasts until a baby is 3 or 4 months old.
Graves disease
A thyroid disorder, usually diagnosed in women. Symptoms include hyperthyroidism (excessive thyroid activity) and extreme fatigue.
gross motor skills
Movements that use the large muscles in the arms, legs, and torso -- such as running and jumping.
