An individual filament made by drawing molten glass. A continuous filament is a glass fiber of great or indefinite length. The smallest unit of a fibrous material. The basic units formed during drawing and spinning, which are gathered into strands of fiber for use in composites. Normally filaments are not used individually.
Some textile filaments can function as a yarn when they are of sufficient strength and flexibility.
Yarn oriented at right angles to the warp in a woven fabric. A relatively inert substance added to a material to alter its physical, mechanical, thermal, electrical, and other properties or to lower cost or density. Sometimes the term is used specifically to mean particulate additives. Index fillet A rounded filling or adhesive that fills the corner or angle where two adherends are joined. The transverse threads or fibers in a woven fabric.