# pharmacosiderite

> English word · Noun

## Definitions
1. A hydrated basic ferric arsenate, consisting of the elements arsenic, iron, hydrogen, potassium, sodium and oxygen.

## Etymology
From Ancient Greek φάρμᾰκον (phármăkon, “poison (i.e. arsenic)”) + σῐ́δηρος (sĭ́dēros, “iron”) + -ite.

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