# echidnin

> English word · Noun

## Definitions
1. A protein, found in the venom of some vipers, that functions as a thrombin-like enzyme.

## Etymology
From Greek ἔχιδνα (ékhidna, “snake, viper”) + -in.

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