bioreactor

noun

"bioreactor" is a 10-letter English headword indexed on PlainSpell.

The verdict

“bioreactor” is uncommon English (frequency #84,026 among 4,121 “B” headwords), classed as a noun. The kind of spelling people second-guess.

#84,026
frequency rank, English
4,121
“B” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A vat or pressure vessel, containing microorganisms or biochemically active substances, used for biotechnological processes such as fermentation, waste recycling, or making drugs.

Corpus desk

Index EN-bioreactor · bioreactor · English

bioreactor · rank #84,026 · 0 variants · 0 confusables

  • FREQ-RARE #84,026
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH bionics

Nearest frequency peer: bionics (-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 “bioreactor”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “bioreactor” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for bioreactor
PropertyValue
Headwordbioreactor
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#84,026
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “bioreactor” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).bioreactorfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “bionics” (#84,025), “bioremediation” (#84,027), “biogenic” (#84,024). Among 4,121 “B” headwords, “bioreactor” is #84,026. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

bioreactor is uncommon English at frequency #84,026 among 4,121 “B” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A vat or pressure vessel, containing microorganisms or biochemically active substances, used for biotechnological processes such as fermentation, waste recycling, or making drugs.".

bioreactor has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From bio- + reactor. The correct English form is bioreactor, spelled B-I-O-R-E-A-C-T-O-R.

Definition

  1. 1
    A vat or pressure vessel, containing microorganisms or biochemically active substances, used for biotechnological processes such as fermentation, waste recycling, or making drugs.

Recorded use

Wiktionary example

These source excerpts show how bioreactor appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. First, there will be little reaction in the settler so that the concentrations of soluble constituents in the recycle stream are the same as those in the bioreactor.

Etymology

From bio- + reactor.

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

How do you spell "bioreactor"?
"bioreactor" is spelled B-I-O-R-E-A-C-T-O-R.
What does "bioreactor" mean?
As a noun, "bioreactor" means: A vat or pressure vessel, containing microorganisms or biochemically active substances, used for biotechnological processes such as fermentation, waste recycling, or making drugs.
What is the origin of the word "bioreactor"?
From bio- + reactor. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "bioreactor", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list