Definition

A person who believes that all space is filled with matter and that a vacuum does not exist.

Example

The plenist argued that even the emptiest regions of space contain some form of matter.

Conversation

Have you ever heard of a plenist?

No, I haven't. What’s that?

It's someone who believes that all space is filled with matter, no vacuums at all.

That’s interesting! I never thought about space that way.

Synonyms & Antonyms

Root Explanation

Plenist → It is formed from "plenus" (meaning full) and the suffix "-ist" (meaning one who practices or is concerned with). A plenist is someone who advocates for or practices fullness or completeness in a particular context.

Memory Tip

Think of 'fullness' ('plenus') and remember that a plenist is someone who is concerned with or advocates for being full or complete.

Visually Confused Words