What is the meaning of speckle?

noun

• A small contrasting part of something.
  • usage: "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"
  • synonyms: spot, dapple, patch, fleck, maculation

verb

• Produce a mottled effect.
  • usage: "The sunlight stippled the trees"
  • synonyms: stipple
• Mark with small spots.
  • usage: "speckle the wall with tiny yellow spots"
  • synonyms: bespeckle