Heathered
A style of yarn dyeing that incorporates tiny flecks or section of lighter shades into the main color of the yarn. Heather-dyed yarns have a soft, weathered look, like stonewashed denim.
Highly Variegated
Multicolor yarns that change color every few stitches. The frequent color changes break up the different colors and distribute them more or less evenly throughout the finished piece. Misti Alpaca is one company famous for making highly variegated yarn.
Kettle-Dyed
A style of yarn dyeing
Self-Striping
Yarn dyed so that stripes of color form as you knit.
Semi-Solid
The yarn is dyed one main color, with visible variations in intensity of color.
Variegated
Multicolor yarn dyed to create splotches or areas of color in the finished piece.