"plastics" in the noun sense
1. plastic
generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives
2. credit card, charge card, charge plate, plastic
a card (usually plastic) that assures a seller that the person using it has a satisfactory credit rating and that the issuer will see to it that the seller receives payment for the merchandise delivered
"do you take plastic?"
Source: WordNet® (An amazing lexical database of English)
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