photoperiod
noun
photoperiod is spelled P-H-O-T-O-P-E-R-I-O-D: 11 letters. It appears about once in every 14 million words in written English, the 114,361st most frequent word form (wordfreq, 2021 data). As a noun, photoperiod means “The normal duration of natural daylight experienced by an organism; daylength” (English Wiktionary, September 2026). The plural of photoperiod is photoperiods.
How many letters and syllables are in photoperiod?
| Letters | 11: P-H-O-T-O-P-E-R-I-O-D |
|---|---|
| In writing | about once in every 14 million words; the 114,361st 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 photoperiod?
Photoperiod appears about once in every 14 million words in written English, the 114,361st 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 photoperiod
- photoperiods plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does photoperiod mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The normal duration of natural daylight experienced by an organism; daylength.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does photoperiod come from?
From photo- + period.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).