noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The bicyclic alkane bicyclo[2.1.0]pentane (C₅H₈). uncountable

Etymology

From house + -ane, named for the molecule's resemblance to a house.

Related phrases

chemical formula

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