otheoscope

noun

othe·​o·​scope

ˈōthēəˌskōp

: an instrument for exhibiting the pressure exerted by light or other radiation in an exhausted vessel compare radiometer

Word History

Etymology

Greek ōthein to push + English -o- + -scope

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