ABSORBANCE

Pronunciation (US):

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 Dictionary entry overview: What does absorbance mean? 

• ABSORBANCE (noun)
  The noun ABSORBANCE has 1 sense:

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

  Familiarity information: ABSORBANCE used as a noun is very rare.

 Dictionary entry details 

• ABSORBANCE (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 ("absorbance" 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 

An instrument for the automated determination of absorbance data from multiple samples contained in a microplate.

(Microplate Reader, NCI Thesaurus)

When the identity of the compound is known, determination of the absorbance at a specific wavelength yields quantitative information about the material analyzed.

(Photometry/Spectrum Analysis, Visible Light, NCI Thesaurus)

Competing antigen inhibits lattice formation and decreases absorbance in proportion to the amount of antigen present in a biological specimen.

(Kinetic Microparticle Immunoassay, NCI Thesaurus)

When the catalytic heme is reduced the absorbance peak for this protein occurs at 450 nm.

(Cytochrome P450, 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)

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 method to measure the absorbance of visible wavelengths of light using a colorimeter.

(Colorimetry, NCI Thesaurus/CDISC)

A method that measures the absorbance of light from a sample which is used for quantifying an amount of analyte based on the level of turbidity produced by the formation and precipitation of an immune complex containing the analyte.

(Immunoturbidimetry, NCI Thesaurus)

A new way to detect anaemia that relies on optical light absorbance to measure haemoglobin levels using whole blood in a microfluidic device is claimed by researchers to be a vast improvement over existing tests that require hemolysis (rupturing) of blood samples and lab facilities.

(New approach promises better anaemia detection, SciDev.Net)