fiber

noun fibers · fibre

1. US, countable A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread. The microscope showed a single blue fiber stuck to the sole of the shoe.
2. US, uncountable A material in the form of fibers. The cloth is made from strange, somewhat rough fiber.
3. US, countable, uncountable A material whose length is at least 1000 times its width. Please use polyester fiber for this shirt.
4. US, countable, uncountable Dietary fiber. Fresh vegetables are a good source of fiber.
5. US, countable, figuratively, uncountable Moral strength and resolve. The ordeal was a test of everyone's fiber.
6. US, countable, uncountable The preimage of a given point in the range of a map. Under this map, any two values in the fiber of a given point on the circle differ by 2π.
7. US, countable, uncountable The pullback of a morphism along a global element (called the fiber of the morphism over the global element).
8. US, countable, uncountable A kind of lightweight thread of execution. We've seen how to create a new fiber and convert the current thread into a fiber (which continues to run after the conversion), but we have yet to focus on how to schedule a new fiber onto the current thread.
9. US, countable, uncountable A long tubular cell found in bodily tissue.