Definition of polyurethane
: any of various polymers that contain NHCOO linkages and are used especially in flexible and rigid foams, elastomers, and resins (as for coatings)
Examples of polyurethane in a Sentence
The floor will need two coats of polyurethane.
Recent Examples of polyurethane from the Web
The battery pack (4 AA batteries not included) is safely secured in a slim, screw-closure plastic case accessed by unzipping the water-resistant nylon liner that permanently encloses the 23.5-by-12-.75-inch polyurethane foam mat.
Polyurethane was originally developed as insulation for aircraft and refrigerators during World War II.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polyurethane'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of polyurethane
International Scientific Vocabulary
First Known Use: 1939See Words from the same year
POLYURETHANE Defined for English Language Learners
Definition of polyurethane for English Language Learners
: a type of plastic that is used to make various products and especially to make a clear liquid that is spread on a surface (such as a wooden floor) and that becomes hard when it dries
Seen and Heard
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