polyisocyanurate

noun

A form of polyurethane polymer, based on cyanuric acid, formed from a polyhydroxy alcohol and a diisocyanate; it forms foams that are used for thermal insulation

Similar
PIR
OriginEnglish isocyanurate ← Ancient Greek πολῠ́ς (polŭ́s) ← Proto-Indo-European *polh₁ús →
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Meanings

nounpolyisocyanurate (plural polyisocyanurates)

plural polyisocyanurates

  1. chemistryA form of polyurethane polymer, based on cyanuric acid, formed from a polyhydroxy alcohol and a diisocyanate; it forms foams that are used for thermal insulation

    Synonyms: PIR

Synonyms & antonyms

nounA form of polyurethane polymer, based on cyanuric acid, formed from a polyhydroxy alcohol and a diisocyanate; it forms foams that are used for thermal insulation

Similar
PIR

Origin

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Englishisocyanurate
  6. Englishpolyisocyanurate

From poly- + isocyanurate.

Full word history & related roots →
Cite this entry
APA

polyisocyanurate. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/polyisocyanurate

MLA

“polyisocyanurate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/polyisocyanurate. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “polyisocyanurate,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/polyisocyanurate.

Source: polyisocyanurate on Wiktionary, CC BY-SA 4.0.