Definition

A person or substance that actively engages in a struggle, competition, or physiological reaction, often by interacting with a receptor in the body.

Example

The agonist binds to the receptor, triggering a response in the cell.

Conversation

Did you know that an agonist can enhance muscle activity during workouts?

Really? I didn't know that! How does it work?

It basically helps your muscles contract more effectively.

That sounds interesting! I might need to look into that for my training.

Synonyms & Antonyms

Root Explanation

Agonist is derived from the Greek word "agonistes" (meaning competitor or one who contends) which comes from "agon" (meaning contest or struggle). The word refers to someone who participates in a contest or struggle, particularly in a physiological context, such as a muscle that contracts to produce movement.

Memory Tip

Think of a competitor in a contest ('agon') — an agonist is someone who actively participates or contends in a struggle.

Visually Confused Words