发愤忘食 fā fèn wàng shí

DEFINITIONS

  1. so dedicated as to forget one's meals (idiom)

CHARACTERS

发 fā issue, dispatch, send out; hair
愤 fèn resent, hate; indignant
忘 wàng forget; neglect; miss, omit
食 shí eat; meal; food; KangXi radical number 184