irradiance

noun ir·ra·di·ance \i-ˈrā-dē-ən(t)s\

Definition of IRRADIANCE

: radiance 1

: the density of radiation incident on a given surface usually expressed in watts per square centimeter or square meter

1599

Medical Dictionary

noun ir·ra·di·ance \ir-ˈād-ē-ən(t)s\

: the density of radiation incident on a given surface usually expressed in watts per square centimeter or square meter

Next Word in the Dictionary: irradiancyPrevious Word in the Dictionary: irrAll Words Near: irradiance

What made you want to look up irradiance? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears