A dim or intermittent flicker or flash of light.
A faint manifestation or indication; a trace: a glimmer of understanding.
To emit a dim, intermittent light: "The ocean glimmered on her left like an iridescent pewter bowl" (Elizabeth Adler). See Synonyms at flash.
To be reflected in dim, intermittent flashes: "Starlight glimmered on rusty metal" (David Drake).
To appear faintly or indistinctly: Hope still glimmered in our minds.