Definition

A liquid that is part of blood, which contains proteins and other substances, often used in medical treatments or tests.

Example

The doctor prescribed a serum to help treat the infection.

Conversation

I read that certain vitamins are present in the serum of our blood.

That's interesting! I didn't know that our blood could hold so many nutrients.

Yeah, it makes you think about how important blood tests can be.

Absolutely, they can reveal so much about our health.

Synonyms & Antonyms

Definition

A clear, yellowish liquid that is part of blood, which remains after the blood has clotted. It contains antibodies and is used in medical treatments to provide immunity.

Example

The doctor administered a serum to help the patient recover from the infection.

Conversation

Have you heard about the new serum they developed for allergies?

Yeah, I read that it can really help reduce symptoms.

I wonder how they extract the serum from the blood.

Root Explanation

**Serum** → The word 'serum' originates from Latin *serum*, meaning 'whey' or 'the watery part of milk'. It refers to the clear liquid that separates from the curd when making cheese, and in modern usage, it has come to denote a fluid used in medical treatments, particularly in immunology.

Memory Tip

Think of the Latin word for 'whey' — 'serum' is that clear liquid, and just like whey is a key part of cheese, serum is a key part of medical treatments.

Visually Confused Words