Fibre meaning : A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread. Material in the form of fibres. Dietary fibre. Moral strength and resolve. The preimage of a given point in the range of a map. Said to be of a morphism over a global element: The pullback of the said morphism along the said global element. A kind of lightweight thread of execution. A long tubular cell found in muscle tissue; myocyte.