photobiology
noun
photobiology is spelled P-H-O-T-O-B-I-O-L-O-G-Y: 12 letters. It appears about once in every 41 million words in written English, the 196,618th most frequent word form (wordfreq, 2021 data). As a noun, photobiology means “The study of the effects of light on living organisms, and on biological processes” (English Wiktionary, September 2026).
How many letters and syllables are in photobiology?
| Letters | 12: P-H-O-T-O-B-I-O-L-O-G-Y |
|---|---|
| In writing | about once in every 41 million words; the 196,618th 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 photobiology?
Photobiology appears about once in every 41 million words in written English, the 196,618th 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).
What does photobiology mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The study of the effects of light on living organisms, and on biological processes
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Photobiology in Spanish, French, German and Portuguese
In the sense the study of the effects of light on living organisms, and on biological process:
| Language | Words |
|---|---|
| Portuguese | fotobiologia |
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 photobiology come from?
From photo- + biology.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).