Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
Any of various materials, made from synthetic polymers, that have a cellular structure and are frequently used in upholstery or insulation.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a foam made by adding water to polyurethane plastics
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: polyurethane foam
Antonyms: none provided
Broader terms: polyurethane, polyurethan
History
Etymology tree Proto-Indo-European *pleh1- Proto-Indo-European *polh1ús Ancient Greek πολῠ́ς (polŭ́s)lbor. English poly- English foam English polyfoam From poly- + foam.
