Definitions for irradiance
ɪˈreɪ di ənsir·ra·di·ance

WiktionaryRate this definition:0.0 / 0 votes

1. irradiancenoun

   The radiant power received by unit area of surface

2. irradiancenoun

   The act of irradiating; emission of rays of light.

3. irradiancenoun

   That which irradiates or is irradiated; lustre; splendour; brilliancy.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Irradiance, Irradiancynoun

   Etymology: irradiance, French; irradio, Latin.

   1. Emission of rays or beams of light upon any object.

   The principal affection is its translucency; the irradiancy and sparkling, found in many gems, is not discoverable in this. Thomas Browne, Vulgar Errours.

   2. Beams of light emitted.

   Love not the heav'nly spirits? Or do they mix
   Irradiance! virtual, or immediate touch? John Milton, Par. Lost.

WikipediaRate this definition:0.0 / 0 votes

1. Irradiance

   In radiometry, irradiance is the radiant flux received by a surface per unit area. The SI unit of irradiance is the watt per square metre (W⋅m−2). The CGS unit erg per square centimetre per second (erg⋅cm−2⋅s−1) is often used in astronomy. Irradiance is often called intensity, but this term is avoided in radiometry where such usage leads to confusion with radiant intensity. In astrophysics, irradiance is called radiant flux.Spectral irradiance is the irradiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The two forms have different dimensions and units: spectral irradiance of a frequency spectrum is measured in watts per square metre per hertz (W⋅m−2⋅Hz−1), while spectral irradiance of a wavelength spectrum is measured in watts per square metre per metre (W⋅m−3), or more commonly watts per square metre per nanometre (W⋅m−2⋅nm−1).

Webster DictionaryRate this definition:0.0 / 0 votes

1. Irradiancenoun

   alt. of Irradiancy

WikidataRate this definition:0.0 / 0 votes

1. Irradiance

   Irradiance is the power of electromagnetic radiation per unit area incident on a surface. Radiant emittance or radiant exitance is the power per unit area radiated by a surface. The SI units for all of these quantities are watts per square meter, while the cgs units are ergs per square centimeter per second. These quantities are sometimes called intensity, but this usage leads to confusion with radiant intensity, which has different units. All of these quantities characterize the total amount of radiation present, at all frequencies. It is also common to consider each frequency in the spectrum separately. When this is done for radiation incident on a surface, it is called spectral irradiance, and has SI units W/m³, or commonly W·m−2·nm−1. If a point source radiates light uniformly in all directions through a non-absorptive medium, then the irradiance decreases in proportion to the square of the distance from the object.

How to pronounce irradiance?

1. Alex

   US English

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   British

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   Australian

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How to say irradiance in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of irradiance in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of irradiance in Pythagorean Numerology is: 1

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Irradiance
2. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=irradiance
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Irradiance
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/irradiance
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=irradiance