episcotister

noun

ep·​i·​sco·​tis·​ter

ˌepəskōˈtistə(r)

plural -s

: a device for reducing the intensity of light in known ratio by means of rapidly rotating opaque and transparent sectors

Word History

Etymology

from (assumed) Greek episkotistos (verbal of Greek episkotizein to shadow, darken, from epi- + skotizein to darken, from skotos dark + -izein -ize) + English -er

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