/tahr"tn/ , n.
1. a woolen or worsted cloth woven with stripes of different colors and widths crossing at right angles, worn chiefly by the Scottish Highlanders, each clan having its own distinctive plaid.
2. a design of such a plaid known by the name of the clan wearing it.
3. any plaid.
adj.
4. of, pertaining to, or resembling tartan.
5. made of tartan.
[ 1490-1500; var. of tertane tertaine (OF tiretaine ) linsey-woolsey ]