apostilb

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English[edit]

Noun[edit]

apostilb (plural apostilbs)

  1. (physics) a unit of luminance, being the luminance of a perfectly diffusing surface emitting light at the rate of candela per square metre. Also known as a blondel.

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Portuguese[edit]

Noun[edit]

apostilb m (plural apostilb or apostilbs)

  1. (physics) apostilb (unit of luminance)