Fibre

A fibre (also spelled as fiber) is a piece of material which is long, thin and flexible, like a length of thread. Plant fibres are the basis of fabric such as cotton. Silk and wool fibres come from animals. In the 20th century many artificial fibres were invented like nylon and polyester.

They are very important in the structure of plants and animals, because they hold tissues together.

There are many uses for fibres. They can be spun together into filaments, thread, string or rope. They can be woven in fabric or in composite materials