JMdict: 2841184

乳児期 【にゅうじき】

  1. [n] infancy; babyhood
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
乳 Milk, Breasts ニュウ ちち, ち 6
児 Newborn Babe, Child, Young Of Animals ジ, ニ, ゲイ こ, -こ, -っこ 4
期 Period, Time, Date, Term キ, ゴ 3