noun
1.
one of the lines of light that appear to radiate from a bright or luminous object
the rays of the sun
Synonyms: beam, shaft, shoot
Related Word: raylet; pencil, streak, stream; moonbeam, sunbeam
Contrasted words: gleam, glow, incandescence, shine
2.
Synonyms: particle , atom, drop, iota, jot, minim, molecule, scrap, shred, smidgen