1
: any of various synthetic textile fibers in filament or staple form that are long-chain polymers composed of at least 85 percent by weight of vinyl chloride units −CH2CHCl− often together with vinyl acetate units, that show good strength wet or dry, but that have a low softening temperature and can be easily molded
2
: yarn or fabric made from vinyon fiber and used especially for industrial filter cloth, fishing lines and nets, and clothing
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Merriam-Webster unabridged
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