Definition

A liquid that comes from blood and contains antibodies, which help fight infections by targeting specific harmful substances.

Example

The doctor administered the antiserum to help the patient recover from the infection.

Conversation

I heard they developed a new antiserum for that virus.

Really? That sounds promising, especially with everything going around.

Yeah, they say it can help those who are already infected.

I hope it gets approved soon; it would make a huge difference.

Synonyms & Antonyms

Root Explanation

Antiserum is formed from "anti-" (meaning against) and "serum" (from Latin "serum", meaning whey or fluid). The word refers to a fluid that works against a disease or toxin, typically used in medical treatments.

Memory Tip

Think of 'against' ('anti-') and a 'fluid' ('serum') that helps fight off illness — that's what antiserum is.

Visually Confused Words