What is "Fiber" or "Textile fiber" ?

"Fiber" or "Textile fiber" :

• A unit of matter which is capable of being spun
  into a yarn or made into a fabric by bonding or by
  interlacing in a variety of methods including
  weaving, knitting, braiding, felting, twisting, or
  webbing, and which is the basic structural element
  of textile products.
• It is a smallest textile component which is
  microscopic hair like substance that may be man
  made or natural.
• They have length at least hundred times to that of
  their diameter or width