Dictionary.com Thesaurus.com

apostilb

American

[ap-uh-stilb] / ˈæp əˌstɪlb /

noun

Optics.

a unit of luminance equal to one ten thousandth of a lambert.

Etymology

Origin of apostilb

Random Word

Spin the wheel and learn a new word!

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.