Definition of "Fiber" :

noun: a leatherlike material made by compressing layers of paper or cloth

noun: the inherent complex of attributes that determines a persons moral and ethical actions and reactions

noun: any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)

noun: coarse, indigestible plant food low in nutrients; its bulk stimulates intestinal peristalsis

noun: a slender and greatly elongated substance capable of being spun into yarn