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What is "Chaff" - Definition & Explanation

A component in cotton of trash (q.v.) in the form of a heterogeneous assortment of vegetable fragments, most of them being small pieces of leaf, leaf bract (a small form of leaf growing beneath the boll) and stalk. "Broken fragments of twig and small branches, particularly when brittle, may be broken up further in ginning and are then also regarded as "chaff". Another component of chaff is the silvery lining of the boll interior, sometimes termed "shale", particularly the partitions dividing the locules before the boll opens."
Lightweight reflecting material, typically consisting of aluminum foil strips or metal-coated fibers, that is released in the atmosphere to produce radar echoes. Initially developed as a military countermeasure, chaff is used in meteorological research to enable tracking of air motions in conditions with no natural airborne scatterers or to provide stronger echoes than those from natural scatterers.

Some other terms

Some more terms:

The technique of permanently joining together two fabrics or layers of fabrics together by a bonding agent.into one package. The bonding of fibers in a single layer of material is called a web....
Silk in a crosswise rib (plain or twill weave). Has brightly colored stripes in the filling direction. Often black warp. The color effects are usually startling or bizarre. Mostly produced in India....
A yarn composed of one or more filaments that run the whole length of the yarn. NOTE: Yarns of one filament and of more than one filament are known as monofilament and multi-filament yarns...
Formation of a non-woven fabric by suspending fibers in water to disperse them evenly. The suspension is poured onto a moving screen allowing the water to pass through and leaving a fiber web, which...
Any filament, fibre, or yarn that can be made into fabric or cloth, and the resulting material itself. The word originally referred only to woven fabrics but now includes knitted, bonded, felted, and...

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