grimace grimace /ˈgrɪməs/

noun

1. A contorted facial expression  ( face , grimace )
   a contorted facial expression
    She made a grimace at the prospect
   she made a grimace at the prospect
   
   

verb

1. () Contort the face to indicate a certain mental or emotional state  ( make a face , pull a face , grimace )
   contort the face to indicate a certain mental or emotional state
    He grimaced when he saw the amount of homework he had to do
   He grimaced when he saw the amount of homework he had to do