Definition

A colorless crystalline substance used in medicine to treat malaria and heart problems.

Example

The doctor prescribed quinidine to help regulate the patient's heart rhythm.

Conversation

Have you ever heard of quinidine?

Yeah, I think it’s used for heart issues, right?

Exactly! I read it can help with rhythm problems too.

That’s interesting! I didn’t know it had that use.

Synonyms & Antonyms

Root Explanation

Quinidine is derived from "quina" (from Spanish *quina*, meaning cinchona tree) and the suffix "-dine" (used in chemistry to denote a compound). The word refers to a compound derived from the cinchona tree, which is known for its medicinal properties, particularly in treating malaria.

Memory Tip

Think of the cinchona tree, known for its medicinal qualities, to remember that quinidine is a compound derived from it.

Visually Confused Words