anaphylaxis
/ˌænəfɪˈlæksɪs/
"anaphylaxis" is a 11-letter English headword indexed on PlainSpell.
The verdict
“anaphylaxis” is a moderately-common English word, ranked #47,462 in English word frequency and used as a noun.
- #47,462
- frequency rank, English
- 11
- letters
- 17
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Extreme sensitivity to a substance such as a foreign protein or drug.
| Property | Value |
|---|---|
| Headword | anaphylaxis |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌænəfɪˈlæksɪs/ |
| Letters | 11 |
| Frequency rank | #47,462 |
| Misspellings tracked | 17 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “anaphylaxis” sits in English frequency
Spelling & Dictionary Insight
The English entry for anaphylaxis is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˌænəfɪˈlæksɪs/. Corpus data places it at rank #47,462 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 17 likely wrong-spelling variants for anaphylaxis, with forms such as "aanphylaxis", "anahpylaxis", and "anaphhylaxis". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: Borrowed from French anaphylaxie, coined by French physiologist and parapsychologist Charles Richet and French zoologist Paul Portier from the Ancient Greek ᾰ̓νᾰ- (ănă-, “(intensifier) thoroughly”) from ᾰ̓νᾰ́ (ănắ, “to, again, upon”) and φύλαξις (phúlaxis, … The correct English form is anaphylaxis, spelled A-N-A-P-H-Y-L-A-X-I-S.
Definition
- 1Extreme sensitivity to a substance such as a foreign protein or drug.
- 2A severe and rapid systemic allergic reaction to an allergen, causing a constriction of the trachea, preventing breathing; anaphylactic shock.
Etymology
Borrowed from French anaphylaxie, coined by French physiologist and parapsychologist Charles Richet and French zoologist Paul Portier from the Ancient Greek ᾰ̓νᾰ- (ănă-, “(intensifier) thoroughly”) from ᾰ̓νᾰ́ (ănắ, “to, again, upon”) and φύλαξις (phúlaxis, “protection, watching, guarding”).
This word in other languages
Common misspellings
Also misspelled as: aanphylaxis,anahpylaxis,anaphhylaxis,anaphlyaxis,anaphyalxis,anaphylaixs,anaphylaxiss,anaphylaxsi,anaphylaxxis,anaphyllaxis,anaphylxais,anaphyylaxis,anapphylaxis,anapyhlaxis,annaphylaxis,anpahylaxis,naaphylaxis
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of anaphylaxis - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "anaphylaxis"?
What does "anaphylaxis" mean?
What are common misspellings of "anaphylaxis"?
How do you pronounce "anaphylaxis"?
What is the origin of the word "anaphylaxis"?
Is PlainSpell free to use?
Using “anaphylaxis”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-N-A-P-H-Y-L-A-X-I-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˌænəfɪˈlæksɪs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.