noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Eighteen atoms of copper in a chemical compound. in-compounds, uncountable

Etymology

From octadeca- + copper.

Editorial Guides For "octadecacopper"

How to Write Clear Call-to-Action Copy

Create stronger CTA text for landing pages and product flows without hype language.

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