noun
A poetic or literary term for a very young baby, often used in classical or elevated contexts. In modern everyday speech, 赤ちゃん or 乳児 are more common.
みどりごの笑顔は天使のようだ。
The smile of an infant is like that of an angel.
彼女はみどりごを胸に抱きしめた。
She held the baby close to her chest.