English Meaning & Definitions
The power of electromagnetic radiation per unit area incident on a surface.
- “The solar irradiance reaching the Earth's surface varies depending on the atmospheric conditions and the angle of the sun.”
- “Engineers measured the irradiance of the LED array to ensure it met the safety standards for skin exposure.”
English Synonyms & Near Equivalents
Comprehensive Thesaurus Breakdown
Compare formal, informal, literary synonyms and register nuances for “irradiance”.
Derived from the Latin 'irradiare', composed of 'in-' (into/upon) and 'radiare' (to emit rays, from 'radius', meaning 'ray' or 'spoke'). The term entered English in the 17th century, originally referring to the act of shining or casting light upon something, before evolving into its current technical usage in physics and radiometry.
Think of 'IR' (Infrared) + 'RADIANCE' (glowing light); it is the measure of how much radiant energy hits a surface.
Frequently Asked Questions About “irradiance”
1. What is the meaning of “irradiance” in English?
In English, irradiance (noun) is defined as: “The power of electromagnetic radiation per unit area incident on a surface.”.
2. How do you use “irradiance” in a sentence?
“The solar irradiance reaching the Earth's surface varies depending on the atmospheric conditions and the angle of the sun.”
3. What are English synonyms of “irradiance”?
4. What is the etymology and word origin of “irradiance”?
Derived from the Latin 'irradiare', composed of 'in-' (into/upon) and 'radiare' (to emit rays, from 'radius', meaning 'ray' or 'spoke'). The term entered English in the 17th century, originally referring to the act of shining or casting light upon something, before evolving into its current technical usage in physics and radiometry.
🇬🇧More English Words to English
View all English words →A measurement of time indicating an instantaneous occurrence or a state where no time has elapsed.
The base unit of time in the International System of Units (SI), equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
A specific duration of time equal to one hour and forty-six minutes and twelve seconds.
The cardinal number equal to one thousand million (1,000,000,000), expressed in scientific notation as 10^9.