phosphorescent
"phosphorescent" is a 14-letter English headword indexed on PlainSpell.
The verdict
“phosphorescent” is uncommon English (frequency #73,526 among 46,516 “P” headwords), classed as an adjective. The kind of spelling people second-guess.
- #73,526
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Having the property of emitting light for a period of time after the source of excitation is taken away, e.g., in electrostatic storage tubes and cathode-ray tubes.
| Property | Value |
|---|---|
| Headword | phosphorescent |
| Language | English |
| Part of speech | Adjective |
| Letters | 14 |
| Frequency rank | #73,526 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “phosphorescent” sits in English frequency
Rare enough to double-check
phosphorescent is uncommon English at frequency #73,526 among 46,516 “P” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Having the property of emitting light for a period of time after the source of excitation is taken away, e.g., in electrostatic storage tubes and cathode-ray tubes.".
phosphorescent doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From phosphorus + -escent. It's interesting to note that phosphorus is not phosphorescent. Some phosphoric mixtures can be luminescent through chemical reactions, but none exhibit literal phosphorescence. The correct English form is phosphorescent, spelled P-H-O-S-P-H-O-R-E-S-C-E-N-T.
Definition
- 1Having the property of emitting light for a period of time after the source of excitation is taken away, e.g., in electrostatic storage tubes and cathode-ray tubes.
Etymology
From phosphorus + -escent. It's interesting to note that phosphorus is not phosphorescent. Some phosphoric mixtures can be luminescent through chemical reactions, but none exhibit literal phosphorescence.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “phosphorescent”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is P-H-O-S-P-H-O-R-E-S-C-E-N-T - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.