oxidase

noun

By · According to Wiktionary data (CC BY-SA) ·

"oxidase" is a 7-letter English headword indexed on PlainSpell.

The verdict

“oxidase” has 9 generated spelling variants in the English index at frequency #42,316. The variants make it a useful spelling check.

#42,316
frequency rank, English
1,431
“O” headwords
9
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.

Corpus desk

Index EN-oxidase · oxidase · English

oxidase · rank #42,316 · 9 variants · 1 confusable

  • FREQ-MID #42,316
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 9 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH Paget

Nearest frequency peer: Paget (+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.

Rank peers near misspelling magnet “oxidase”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “oxidase” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

oxidase vs oxide
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for oxidase
PropertyValue
Headwordoxidase
LanguageEnglish
Part of speechNoun
Letters7
Frequency rank#42,316
Misspellings tracked9
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “oxidase”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “Paget” (#42,317), “Paleozoic” (#42,318), “Pali” (#42,319). Among 1,431 “O” headwords, “oxidase” is #42,316. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around oxidase, anoun. Corpus frequency is #42,316 among 1,431 “O” headwords. Dominant gloss: "Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.".

Our generated misspelling index lists 9 likely wrong-spelling variants for oxidase, with forms such as "oixdase", "oxdiase", and "oxiadse". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "oxide", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From oxide + -ase introduced by Gabriel Bertrand. The correct English form is oxidase, spelled O-X-I-D-A-S-E.

Definition

  1. 1
    Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.

Recorded use

Wiktionary example

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

  1. The effects of hemoglobin in anemia and chlorosis, and even in tuberculosis, are due to its triple action; it acts opotherapeutically, through the blood oxydases, which it contains when properly prepared.

Etymology

From oxide + -ase introduced by Gabriel Bertrand.

This word in other languages

oxydase(Français)Oxidase(Deutsch)

Common misspellings

Also misspelled as:

  • oixdase
  • oxdiase
  • oxiadse
  • oxidaes
  • oxidasse
  • oxiddase
  • oxidsae
  • oxxidase
  • xoidase

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of oxidase - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

oixdase2oxdiase2oxiadse2oxidaes2oxidasse1oxiddase1oxidsae2oxxidase1
Edit distance from "oxidase"

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 "oxidase"?
"oxidase" is spelled O-X-I-D-A-S-E.
What does "oxidase" mean?
As a noun, "oxidase" means: Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.
What words are commonly confused with "oxidase"?
"oxidase" is commonly confused with "oxide". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "oxidase"?
From oxide + -ase introduced by Gabriel Bertrand. 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 "oxidase", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Oshkosh#42,311Pattaya#42,326Nanking#42,292moraine#42,283

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

readout9 variantsreapply9 variantsMcAvoy9 variantsruinous9 variants

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

Source: FrequencyWords open word-frequency list