Definition

A type of protein or antibody in the blood that helps the immune system recognize and attack foreign cells, like bacteria, by making them easier for immune cells to destroy.

Example

Opsonins play a crucial role in the immune response by marking pathogens for destruction.

Conversation

I was reading about how opsonin helps our immune system.

Really? I didn't know that! What does it do exactly?

It makes bacteria more vulnerable to phagocytes, which is pretty cool.

That makes sense! The body has such interesting ways to protect itself.

Synonyms & Antonyms

Root Explanation

Opsonin comes from the Greek word 'opsonion' (meaning a condiment or sauce). The term is used in immunology to refer to substances that enhance the ability of phagocytes to engulf and destroy pathogens. Thus, opsonin refers to a substance that makes it easier for immune cells to target and eliminate invaders.

Memory Tip

Think of 'opsonion' as a sauce that helps your immune system 'target' and 'destroy' invaders more effectively.

Visually Confused Words