noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of various materials, made from synthetic polymers, that have a cellular structure and are frequently used in upholstery or insulation. countable, uncountable
2. 2
   a foam made by adding water to polyurethane plastics wordnet

Synonyms

All synonyms

polyurethane foam

Etymology

From poly- + foam.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.