プログレッシブ和英中辞典(第4版)の解説
まんぷく【満腹】
満腹するまで食べる
eat one's fill／eat heartily
満腹の時は激しい運動をしないほうがよい
You had better not do heavy exercise on a full stomach.
満腹です
I have had plenty.（▼おかわりを断るときI've had enough. は失礼になる）／I'm full.
満腹感
食後の満腹感
a feeling of fullness after a meal
いくら食べても満腹感がない
However much I eat, I don't feel full.