Fiber comes from the Latin "fiber" where it has the same meaning and this Latin word comes from "fillum" which means thread, from which other words such as edge, filament, sharpen among others come. According to the RAE, fiber is understood to be "each of the filaments that enter into the composition of organic animal or plant tissues." But they can also be each strand or filament that certain mineral and chemical products have in their texture, an example of this is the fibrous metamorphic mineral asbestos that has resistant and long fibers that can be separated and are flexible to the point of being intertwined, and they can also resist high temperatures.
When classifying these types of fibers we have the optical fiber is a thin flexible filament or strand the thickness of a hair, which are usually made of glass or silica, which makes possible the transmission of light impulses from one end to the other without interruption, at large speeds and distances. Another type is fiberglass, which is the material composed of a large number of strands and that are extremely fine glass, which is used to make insulating materials. Other types are carbon fiber, which is a synthetic fiber, and textile fiber, which are used to form threads and of these, fabrics.
On the other hand, there is the dietary fiber that is the area of a plant that consists of the absorption and digestion of the small intestine and that undergoes the fermentation of the large intestine. This same can be found in certain foods such as cereals, vegetables, legumes and fruits. And finally, the word fiber can be used as a synonym for vigor, or energy.
