Pounds per square inch. The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch:
small for gesÂ·taÂ·tionÂ·al age. Infant whose birth weight is below the tenth percentile for gestational age. small for gestational age. SGA. 1. Term describing an infant whose birth weight is at or below the 10th percentile, as correlated with the number of weeks in utero on the intrauterine growth chart.
The average newborn weight is about 7 pounds 8 ounces (3,400grams). The term macrosomia is used to describe a newborn with an excessive birth weight, which literally means large body. The diagnosis of fetal macrosomia can be made only by measuring birth weight after delivery.t full term, the avarage baby will be about 20 inches (51 cm) long and will weigh approximately 6 to 9 pounds (2700 to 4000 grams). - During a normal pregnancy your baby will grow and develop at about the same rate as any other pregnancy.