Last Updated：2025/11/30
(US, colloquial) Time spent by an infant in the prone position while awake and supervised, supposed to reduce the risk of skull deformation from spending too much time supine.
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tummy time
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Source Word
tummy time
Noun
US
colloquial
uncountable
Japanese Meaning
赤ちゃんが起きた状態で、監視の下にうつ伏せになって過ごす時間。頭の形状を正常に保つための、意図的なうつ伏せの時間を指す。
