Definition

A bulbous structure formed by certain parasitic fungi that helps them attach to and penetrate the surface of their host.

Example

The appressorium allows the fungus to effectively invade the plant tissue.

Conversation

Did you know that some fungi have a structure called an appressorium?

Really? What does it do?

It's used by the fungi to attach to their host and penetrate it.

That's fascinating! Nature has so many incredible adaptations.

Synonyms & Antonyms

Root Explanation

Appressorium is formed from "ad-" (meaning to, towards) and "pressare" (meaning to press). The term refers to a structure that presses against something, particularly in biological contexts where it describes a specialized structure that helps an organism attach to a surface.

Memory Tip

Think of something that is 'pressing towards' ('ad-') a surface — that's what an appressorium does.

Visually Confused Words