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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:

A basic stitch used in weft knitting, in which each loop formed in the knit is identical. The jersey stitch is also called the plain, felt, or stockinet stitch. Jute - A bast fiber, chiefly from...
A woven fabric with a series of faint stripes formed by the arrangement of light, medium, and dark warp yarns or by twisting together 2 yarns of different colors. Used for drapery, upholstery,...
Knitting is one of several ways to turn thread or yarn into cloth (cf weaving, crochet). Unlike woven fabric, knitted fabric consists entirely of parallel courses of yarn. The courses are joined to...
A yarn composed of one or more filaments (q.v.) that run the whole length of the yarn. NOTE: Yarns of one filament and yarns of several filaments are referred to as mono-filament and...
A Finishing Process That Produces A High Gloss On The Surface On The Fabric By Passing It Through Heavy Rollers (calendering) . Fabrics Made Of Thermoplastic Fibers Like Nylon Or Polyester Are Cired...

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