Definition

A type of marine animal known as a horseshoe crab, which has a hard shell and is often found in shallow coastal waters.

Example

The limulus is often studied for its unique blood, which is used in medical testing.

Conversation

Did you know that a limulus is actually a horseshoe crab?

Really? I thought they were just called horseshoe crabs.

Yeah, it's interesting how they have that scientific name limulus too.

I love learning about these creatures; they are so ancient!

Synonyms & Antonyms

Root Explanation

Limulus is derived from Latin 'limulus' (meaning little edge or little threshold), which is a diminutive form of 'lima' (meaning edge or border). The term refers to the horseshoe crab, which has a distinctive shape resembling a little edge or threshold.

Memory Tip

Think of the Latin word for edge ('lima') and remember that 'limulus' refers to a creature with a shape that resembles a little edge.

Visually Confused Words