bioluminescent
"bioluminescent" is a 14-letter English headword indexed on PlainSpell.
The verdict
“bioluminescent” is uncommon English (frequency #79,308 among 4,121 “B” headwords), classed as an adjective. The kind of spelling people second-guess.
- #79,308
- frequency rank, English
- 4,121
- “B” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Exhibiting bioluminescence.
Corpus desk
Index EN-bioluminescent · bioluminescent · English
bioluminescent · rank #79,308 · 0 variants · 0 confusables
- FREQ-RARE #79,308
- LEN-MEGA 14 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,121
- PHOTO-FINISH bimodal
Nearest frequency peer: bimodal (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “bioluminescent”
Sparse band: bars invert rank so rarer forms read shorter
- Bewick
Bewick
20,697 corpus weight
- Bick
Bick
20,696 corpus weight
- bimodal
bimodal
20,694 corpus weight
- bioluminesc…
bioluminescent
20,693 corpus weight
- Birney
Birney
20,692 corpus weight
- bisphenol
bisphenol
20,691 corpus weight
What this shows Long-tail view: where “bioluminescent” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | bioluminescent |
| Language | English |
| Part of speech | Adjective |
| Letters | 14 |
| Frequency rank | #79,308 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “bioluminescent” in English
Rare enough to double-check
bioluminescent is uncommon English at frequency #79,308 among 4,121 “B” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Exhibiting bioluminescence.".
No generated misspelling entries exist for bioluminescent in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From bio- + luminescent. The correct English form is bioluminescent, spelled B-I-O-L-U-M-I-N-E-S-C-E-N-T.
Definition
- 1Exhibiting bioluminescence.
Etymology
From bio- + luminescent.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "bioluminescent", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 14 letters (nearest by frequency rank).