field ion microscope

noun

: a high-magnification microscope in which an image of the atoms of a metal surface is formed on a fluorescent screen by means of usually helium ions formed in a high-voltage electric field

field ion microscopy noun

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now