Also called the "weft," which is created by yarns woven under and over the lengthwise yarns. General sewing term.

the fabric threads that go from selvedge to selvedge...sometimes called weft or filling threads; has some stretch, but very little.

threads of a woven fabric running perpendicular to the selvage.; Crosswise grain has a slight amount of stretch, which makes it appropriate for binding straight-edged quilts.