phasm

noun

ˈfazəm

plural phasms

-zəmz

or phasmata

-zmətə

1

archaic : an extraordinary appearance (as of light) : meteor

2

archaic : apparition, phantom

Word History

Etymology

Greek phasmat-, phasma, from phainein to show

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