shimmer in WordNet English dictionary

1. a weak and tremulous light
   "the shimmer of colors on iridescent feathers"; "the play of light on the water"
   shimmer  play 
   

1. give off a shimmering reflection, as of silk
   shimmer 
   
2. shine with a weak or fitful light
   "Beech leaves shimmered in the moonlight"
   shimmer