What does "shimmer" mean?

Shimmer: To shine with a tremulous or intermittent light; to shine faintly; to gleam; to glisten; to glimmer. The shimmering glimpses of a stream. Tennyson.

Additional senses

  1. 2.A faint, tremulous light; a gleaming; a glimmer. TWo silver lamps, fed with perfumed oil, diffused . . . a trembling twilight-seeming shimmer through the quiet apartment. Sir W. Scott.

Sources