Definition

A small, needle-like structure found in some animals, such as the spines of certain sea creatures or reproductive organs in worms.

Example

The spiculum of the sea urchin helps protect it from predators.

Conversation

Did you know that some sea creatures have a structure called a spiculum?

Really? What exactly is a spiculum?

It's like a tiny spine or needle that helps them in various ways.

That's fascinating! Nature has such interesting adaptations.

Synonyms & Antonyms

Root Explanation

Spiculum is derived from the Latin root "spicula" (meaning a small point or sharp end) and the diminutive suffix "-ulum" (indicating smallness). The word "spiculum" refers to a small, pointed object or a sharp projection, often used in a biological context to describe structures like spines or thorns.

Memory Tip

Think of a small 'point' ('spicula') to remember that 'spiculum' refers to a small, sharp object.

Visually Confused Words