irradiance
/ɪˈɹeɪ.di.əns/noun
irradiance is spelled I-R-R-A-D-I-A-N-C-E: 10 letters. It appears about once in every 6 million words in written English, the 71,529th most frequent word form (wordfreq, 2021 data). As a noun, irradiance means “The act of irradiating; emission of rays of light” (English Wiktionary, September 2026). The plural of irradiance is irradiances.
How many letters and syllables are in irradiance?
| Letters | 10: I-R-R-A-D-I-A-N-C-E |
|---|---|
| In writing | about once in every 6 million words; the 71,529th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is irradiance?
Irradiance appears about once in every 6 million words in written English, the 71,529th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce irradiance?
- /ɪˈɹeɪ.di.əns/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of irradiance
- irradiances plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does irradiance mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The act of irradiating; emission of rays of light.
- 2
That which irradiates or is irradiated; lustre; splendour; brilliancy.
- 3
The radiant power received by unit area of surface.
The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Irradiance in Spanish, French, German and Portuguese
In the sense physics: Radiant power received by unit area of surface:
| Language | Words |
|---|---|
| German | Bestrahlungsstärke |
| Spanish | irradiancia |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does irradiance come from?
From irradiant + -ance.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).