Definition of Fiber

Noun: fiber fI-bur
Usage: US (elsewhere: fibre)

A slender and greatly elongated substance capable of being spun into yarn
- fibre [Brit, Cdn]
Coarse, indigestible plant food low in nutrients; its bulk stimulates intestinal peristalsis
- roughage, fibre [Brit, Cdn]
Any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)
- fibre [Brit, Cdn]
The inherent complex of attributes that determines a person's moral and ethical actions and reactions
- character, fibre [Brit, Cdn]
A leatherlike material made by compressing layers of paper or cloth
- fibre [Brit, Cdn], vulcanized fiber [US], vulcanized fibre [Brit, Cdn]