# untriseptium

> English word · Noun

## Definitions
1. The systematic element name for the (as yet undiscovered) chemical element with atomic number 137 (symbol Uts).

## Etymology
Systematic element name.

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