Definition

A small gas bubble found in volcanic rock that is filled with minerals like zeolite, calcite, or quartz.

Example

The geologist examined the amygdule in the volcanic rock to identify the minerals inside.

Conversation

Have you ever seen an amygdule in a rock before?

No, I haven't! What exactly is it?

It's a small gas bubble in volcanic rock that can be filled with minerals.

That sounds fascinating! I'd love to find one on a hike.

Synonyms & Antonyms

Root Explanation

Amygdule is derived from the Greek word "amygdale" (meaning almond), which refers to the almond-shaped structures found in various contexts, such as geology and anatomy. The suffix "-ule" (meaning small) indicates a diminutive form. Thus, "amygdule" refers to a small almond-shaped structure or formation.

Memory Tip

Think of the Greek word for almond, 'amygdale', to remember that an 'amygdule' is a small almond-shaped structure.

Visually Confused Words