Pentamethylene

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Five methylene groups in a molecule especially, in-compounds
  2. 2
    Synonym of cyclopentane.

Synonyms

All synonyms
cyclopentanetetrahydropyran

Etymology

From penta- + methylene, being composed of five methylene residues.

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