Consisting of three layers or strands. (adjective)
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 "three-ply" in a sentence
"Dozens of cards made of three-ply, and hand-printed and illustrated."
"The dark, the glossy-wet, the formerly green banana leaf — three-ply — was open and inside the yellow mass: the dough, the yellow peas, the disintegrating carrot slices, the chicken with its skin, the hard boiled egg."
"If you routinely venture into terrain with sharp rocks or thorny vegetation that can pierce the sidewall (such damage is not repairable), consider tires with actual three-ply sidewall construction."