ketoacidosis

noun

"ketoacidosis" is a 12-letter English headword indexed on PlainSpell.

The verdict

“ketoacidosis” is uncommon English (frequency #83,411 among 1,236 “K” headwords), classed as a noun. The kind of spelling people second-guess.

#83,411
frequency rank, English
1,236
“K” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A severe form of ketosis, most commonly seen in diabetics, in which so much ketone is produced that acidosis occurs.

Corpus desk

Index EN-ketoacidosis · ketoacidosis · English

ketoacidosis · rank #83,411 · 0 variants · 0 confusables

  • FREQ-RARE #83,411
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,236
  • PHOTO-FINISH Kerwin

Nearest frequency peer: Kerwin (-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 “ketoacidosis”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for ketoacidosis
PropertyValue
Headwordketoacidosis
LanguageEnglish
Part of speechNoun
Letters12
Frequency rank#83,411
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ketoacidosis” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).ketoacidosisfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Kerwin” (#83,410), “Khalaf” (#83,412), “Keiji” (#83,406). Among 1,236 “K” headwords, “ketoacidosis” is #83,411. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

ketoacidosis is uncommon English at frequency #83,411 among 1,236 “K” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A severe form of ketosis, most commonly seen in diabetics, in which so much ketone is produced that acidosis occurs.".

We couldn't generate a plausible misspelling set for ketoacidosis, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From keto- + acidosis. The correct English form is ketoacidosis, spelled K-E-T-O-A-C-I-D-O-S-I-S.

Definition

  1. 1
    A severe form of ketosis, most commonly seen in diabetics, in which so much ketone is produced that acidosis occurs.

Etymology

From keto- + acidosis.

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

How do you spell "ketoacidosis"?
"ketoacidosis" is spelled K-E-T-O-A-C-I-D-O-S-I-S.
What does "ketoacidosis" mean?
As a noun, "ketoacidosis" means: A severe form of ketosis, most commonly seen in diabetics, in which so much ketone is produced that acidosis occurs.
What is the origin of the word "ketoacidosis"?
From keto- + acidosis. 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 "ketoacidosis", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list