Definition

A type of sea creature known as a sea urchin, specifically from the genus Echinus, or a rounded architectural molding found beneath the top part of a Doric column.

Example

The echinus is often found in rocky coastal waters, where it plays a role in the marine ecosystem.

Conversation

I saw a really interesting exhibit about marine life yesterday.

Oh, that sounds cool! Did they have any echinus on display?

Yes, they did! The echinus were fascinating to look at with their spiky shells.

I bet! I’ve always found sea urchins to be quite unique.

Synonyms & Antonyms

Root Explanation

Echinus → It originates from the Greek word "echinos" (ἔχῖνος), meaning hedgehog or sea urchin. The term is used in biology to refer to certain spiny sea creatures, drawing a parallel to the spiny appearance of a hedgehog.

Memory Tip

Think of the Greek word for hedgehog, 'echinos', to remember that 'echinus' refers to a spiny sea creature, much like a hedgehog.

Visually Confused Words