Christmas disease

noun

"christmas-disease" is a 16-letter English headword indexed on PlainSpell.

The verdict

“Christmas disease” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
17
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - haemophilia B

Key facts for Christmas disease
PropertyValue
HeadwordChristmas disease
LanguageEnglish
Part of speechNoun
Letters17
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Christmas disease” sits in English frequency

Christmas disease falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Christmas disease is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "haemophilia B".

Our edit-distance generator produced no likely misspellings for Christmas disease, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Christmas + disease Named for Stephen Christmas, the first patient described with the disease. The correct English form is Christmas disease, spelled C-H-R-I-S-T-M-A-S- -D-I-S-E-A-S-E.

Definition

  1. 1
    haemophilia B

Etymology

Christmas + disease Named for Stephen Christmas, the first patient described with the disease.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Christmas disease"?
"Christmas disease" is spelled C-H-R-I-S-T-M-A-S- -D-I-S-E-A-S-E.
What does "Christmas disease" mean?
As a noun, "Christmas disease" means: haemophilia B
What is the origin of the word "Christmas disease"?
Christmas + disease Named for Stephen Christmas, the first patient described with the disease. 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.

Using “Christmas disease”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-H-R-I-S-T-M-A-S- -D-I-S-E-A-S-E - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
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.

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

Source: FrequencyWords open word-frequency list