/ ˈʃɪmə(r); NAmE / verb , noun
■ verb
[ v ] to shine with a soft light that seems to move slightly :
The sea was shimmering in the sunlight.
➡ note at shine
■ noun
[ U , sing. ] a shining light that seems to move slightly :
a shimmer of moonlight in the dark sky
••
WORD ORIGIN
late Old English scymrian , of Germanic origin; related to German schimmern , also to shine . The noun dates from the early 19th cent.