Definition

Relating to or containing arsenic, particularly in a form where it has a valence of three.

Example

The chemist studied the properties of arsenious compounds in the laboratory.

Conversation

Did you read that article about arsenious compounds?

Yeah, it was interesting how they can affect the environment.

I had no idea they were so toxic in certain forms.

Exactly! It makes you think about the safety of what we use every day.

Synonyms & Antonyms

Root Explanation

Arsenious → It is formed from "arsenicum" (from Greek "arsenikon", meaning yellow orpiment, a mineral) and the suffix "-ous" (meaning characterized by or full of). The word "arsenious" refers to compounds containing arsenic, particularly in a lower oxidation state.

Memory Tip

Think of 'arsenicum' which relates to arsenic, and remember that 'arsenious' describes something that is characterized by arsenic.

Visually Confused Words