|polyurethane or polyurethan (ˌpɒlɪˈjʊərəˌθeɪn, ˌpɒlɪˈjʊərəˌθæn)|
|a class of synthetic materials made by copolymerizing an isocyanate and a polyhydric alcohol and commonly used as a foam (polyurethane foam) for insulation and packing, as fibres and hard inert coatings, and in a flexible form (polyurethane rubber) for diaphragms and seals|
|polyurethan or polyurethan|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|polyurethane (pŏl'ē-yr'ə-thān') Pronunciation Key
Any of various synthetic resins used to make tough resistant coatings, adhesives, foams, and electrical insulation.