Fiber

Natural or synthetic substance that is significantly longer than it is wide

Fiber

Fiber (spelled fibre in British English; from Latin: fibra) is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorporate fibers, for example carbon fiber and ultra-high-molecular-weight polyethylene.

From Wikipedia, under CC BY-SA. More on occurri.