phototoxic
adjective
phototoxic is spelled P-H-O-T-O-T-O-X-I-C: 10 letters. It appears about once in every 62 million words in written English, the 246,401st most frequent word form (wordfreq, 2021 data). As an adjective, phototoxic means “Causing damage to the skin when exposed to light” (English Wiktionary, September 2026).
How many letters and syllables are in phototoxic?
| Letters | 10: P-H-O-T-O-T-O-X-I-C |
|---|---|
| In writing | about once in every 62 million words; the 246,401st 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 phototoxic?
Phototoxic appears about once in every 62 million words in written English, the 246,401st 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).
Forms of phototoxic
- more phototoxic comparative
- most phototoxic superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does phototoxic mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Causing damage to the skin when exposed to light.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Phototoxic in Spanish, French, German and Portuguese
In the sense causing damage to the skin when exposed to light:
| Language | Words |
|---|---|
| French | phototoxique |
| German | phototoxisch, fototoxisch |
| Portuguese | fototóxico |
| Spanish | fototóxico |
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 phototoxic come from?
From photo- + toxic.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).