apostilb
التعريفات والمعاني
== English ==
=== Noun ===
apostilb (plural apostilbs)
(physics) a unit of luminance, being the luminance of a perfectly diffusing surface emitting light at the rate of 1⁄π candela per square metre. Also known as a blondel.
==== Related terms ====
stilb
==== Translations ====
=== Anagrams ===
Pabloist, bioplast
== Portuguese ==
=== Noun ===
apostilb m (plural apostilb or apostilbs)
(physics) apostilb (unit of luminance)