# Tollens' reagent

> English word · Noun

## Definitions
1. A chemical reagent consisting of a solution of silver nitrate and ammonia, used to determine the presence of an aldehyde.

## Etymology
Named after its discoverer, the German chemist Bernhard Tollens.

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