OPTICAL DENSITY

Pronunciation (US):

(GB):

 Dictionary entry overview: What does optical density mean? 

• OPTICAL DENSITY (noun)
  The noun OPTICAL DENSITY has 1 sense:

1. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

  Familiarity information: OPTICAL DENSITY used as a noun is very rare.

 Dictionary entry details 

• OPTICAL DENSITY (noun)

Sense 1

Meaning:

(physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

absorbance; optical density; photographic density; transmission density

Hypernyms ("optical density" is a kind of...):

denseness; density (the amount per unit size)

Domain category:

natural philosophy; physics (the science of matter and energy and their interactions)

 Context examples 

The optical density of produced color has a direct relationship with Direct Bilirubin concentration in the solution.

(Direct Bilirubin Measurement, NCI Thesaurus)

Measuring the optical density of a substance by shining light on it and measuring its transmission.

(Densitometry, NCI Thesaurus)

A unit of a speed of optical density change expressed as a logarithm of absorbance of light transmitted through a partially absorbing substance per minute.

(Absorbance Unit per Minute, NCI Thesaurus)

A unit of optical density expressed as the absorbance of light transmitted through the medium on the logarithmic scale.

(Absorbance Unit, NCI Thesaurus)