Definition of 満面笑顔 (まんめんえがお)
まんめんえがお
                        満面笑顔
まんめんえがお
manmen-egao
noun
•
        
(with) one's face beaming with joy, smiling from ear to ear(yojijukugo)
Related Kanji
| 満 | full, fullness, enough, satisfy | 
| 面 | mask, face, features, surface | 
| 笑 | laugh | 
| 顔 | face, expression |