探たん索さく反はん射しゃ

noun

rooting reflex

A neonatal reflex where an infant turns its head toward a touch on the cheek and opens its mouth, aiding breastfeeding. Used in medical and childcare contexts.

• 新しん生せい児じの探たん索さく反はん射しゃは、母ぼ乳にゅうを探さがすための原げん始し反はん射しゃの一ひとつです。

  The rooting reflex in newborns is one of the primitive reflexes for seeking the breast.