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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 woven fabric with corded yarns spaced at regular intervals in both the warp and filling, forming squares on the surface of the fabric. Originally intended so a tear in the fabric would not spread....
Colloquial term for upholsterer. Before pneumatic staplers, upholstery was commonly attached to frames with tacks. An upholsterer would put tacks in his/her mouth (which is why many were advertized...
A ketone solvent. A highly volatile, aromatic, flammable and moderately toxic selective solvent. Ingredient in nail polish remover, some paint strippers, and most lacquer thinners. Miscible in water....
Technical method of constructing the fronts of case furniture, such as chests or cabinets. Featuring three flattened curves, the concave flanked by convex. Developed in America, especially in New...
Silk, rayon, or cotton in a plain or crosswise rib weave. It has a watermarked finish that is fairly stiff with body in most cases. It is produced by passing the fabric between engraved cylinders...

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