Definition

A capsomer is a protein subunit that makes up the capsid of a virus, which is the protective outer shell that encases the viral genetic material.

Example

The virus's capsomers assemble to form a protective shell around its genetic material.

Conversation

Have you ever heard of a capsomer?

I think so, but I'm not really sure what it is.

It's a structural protein that helps form viruses.

Oh, that makes sense! I always wondered how they worked.

Root Explanation

Capsomer → The word is formed from "capsa" (from Latin, meaning box or container) and "mer" (from Greek "meros", meaning part). A capsomer refers to a structural unit or part of a viral capsid, which is like a box that contains the viral genetic material.

Memory Tip

Think of a 'box' ('capsa') that holds 'parts' ('mer') — that's why a capsomer is a part of the viral container.

Visually Confused Words