Definition

Relating to or resembling a severe allergic reaction that can occur suddenly and may be life-threatening.

Example

The patient experienced an anaphylactoid reaction after eating shellfish.

Conversation

Did you hear about that incident at the picnic yesterday?

Yeah, I heard someone had an anaphylactoid reaction to some food.

That's really scary, especially since it can happen so suddenly.

I know! It's important to be aware of allergies at gatherings.

Synonyms & Antonyms

Root Explanation

Anaphylactoid → It is formed from "ana-" (meaning against) and "phylaxis" (from Greek "phylaxis", meaning protection). The term refers to a reaction that is similar to anaphylaxis but does not involve the immune system's typical response, hence it is a reaction that goes against the expected protective response.

Memory Tip

Think of 'against' ('ana-') and 'protection' ('phylaxis') to remember that anaphylactoid refers to a reaction that opposes the usual protective response of the body.

Visually Confused Words