A speck or small spot, as a natural dot of color on skin, plumage, or foliage.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "speckle" in a sentence
"Thanks Laurie - it is a shame, whoever invents a way to keep the speckle will be my hero for life!"
"The ocean shore teemed with fish, crustaceans, and sea mammals, but one particular fish, called a speckle fish, was everyone's favorite."
"SPR microscopy instruments driven by coherent illumination can suffer from dramatically reduced image quality due to interference effects, the so-called speckle artifact."