Mottle
Part of speech: verb
Definition: To mark with spots of different color, or shades of color, as if stained; to spot; to maculate.
Streak
Part of speech: verb
Definition: to have or obtain streaks.to run naked in publicto create streaksTo move very swiftly.
Part of speech: noun
Definition: An irregular line left from smearing or motion.A continuous series of like events.The color of the powder of a mineral. So called, because a simple field test for a mineral is to streak it against unglazed white porcelain.A moth of the family Geometridae Chesias legatella (see w:Streak (moth)).A tendency or characteristic, but not a dominant or pervasive one.
Example sentence: To be an effective leader, you have to have a manipulative streak - you have to figure out the people working for you and give each tasks that will take advantage of his strength.