Meaning of 喜色 in Japanese

Definition of 喜色

きしょく(kishoku) 【喜色】

きしょくまんめん(kishokumanmen) 【喜色満面】

喜色満面きしょくまんめんの笑みえみを浮かべているけど、彼かれ、よっぽど嬉しいうれしいことがあったんだろうな。

You could tell by the ear-to-ear grin that came to his face that he really had something to smile about.