beryllium.

A light metallic element used where low mass, stiffness, or particular radiation properties are valuable.

Use it for

Words that belong together

• beryllium components
• a beryllium window

On the page

The instrument used a thin beryllium window to transmit X-rays.

The technician isolated the damaged beryllium component instead of grinding it in the workshop.

Usage notes

Primary category: sci-fi. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.