# tropin

> English word · Noun

## Definitions
1. any of the tropic hormones; one that is secreted by an endocrine gland and targets another such gland
2. Alternative spelling of tropine.

## Etymology
From tropic + -in.

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