# sigmodont

> English word · Noun

## Definitions
1. Any of the Sigmodontinae subfamily of rodents, including New World rats and mice.

## Etymology
Ancient Greek σῖγμα (sîgma) + ὀδών (odṓn, “tooth”). So called from the form of the ridges of enamel on the crowns of the worn molars.

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