bias (ply) tire[bīˈəs-plīˌ]
bias (ply) tire definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a motor vehicle tire having a foundation of plies of rubberized cords in a crisscross pattern of lines diagonal to the center line of the tread
bias (ply) tire definition by American Heritage Dictionary
A pneumatic tire having crossed layers of ply cord running diagonally to the tread.