# nociceptin

> English word · Noun

## Definitions
1. A neurologically active oligopeptide related to the opioids.

## Etymology
Of similar construction as nociceptor (which see) but with suffix -in for substances.

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