# ilmenium

> English word · Noun

## Definitions
1. A supposed chemical element, later found to be a mixture of niobium and tantalum.

## Etymology
From Ilmen + -ium. Compare ilmenite.

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