Definition

Something that is recognized by the immune system as not belonging to the body, often seen as a threat.

Example

The body reacts to nonself substances by activating its immune response.

Conversation

I was reading about how our bodies react to nonself materials.

Oh, really? That sounds interesting! What did you learn?

Well, it turns out the immune system fights off anything it identifies as nonself.

That makes sense! It's amazing how our bodies protect us.

Synonyms & Antonyms

Root Explanation

Nonself → It is formed from "non-" (meaning not) and "self" (from Old English "self", meaning oneself). The word "nonself" refers to something that is not oneself or not of one's own identity.

Memory Tip

Think of 'not' ('non-') and 'oneself' ('self') to remember that 'nonself' means something that is not your own identity.

Visually Confused Words