# nonacalcium

> English word · Noun

## Definitions
1. Nine calcium atoms or cations in a molecule (Ca₉)

## Etymology
From nona- + calcium.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/nonacalcium