The measurement of fetal size, growth, or physical dimensions, typically using ultrasound or other imaging techniques during pregnancy.
From Latin 'fetus' (unborn child) combined with Greek '-metria' (measurement). This clinical term emerged with prenatal ultrasound technology in the late 20th century.
Fetometry numbers—like head circumference and femur length—tell doctors what's happening inside the womb and whether the baby is growing normally; it's basically prenatal detective work using measurements.
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