perfusion

/pəɹˈfjuʒən/

//pəɹˈfjuʒən// noun

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

"perfusion" is a 9-letter English headword indexed on PlainSpell.

The verdict

“perfusion” has 14 generated spelling variants in the English index at frequency #43,308. The variants make it a useful spelling check.

#43,308
frequency rank, English
4,417
“P” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act of perfusing, the passage of fluid through the circulatory system.

Corpus desk

Index EN-perfusion · perfusion · English

perfusion · rank #43,308 · 14 variants · 2 confusables

  • FREQ-MID #43,308
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH penile

Nearest frequency peer: penile (-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 “perfusion”

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

corpus weight

What this shows “perfusion” 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).

perfusion vs persuasion
80% similar
perfusion vs percussion
80% similar

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

Key facts for perfusion
PropertyValue
Headwordperfusion
LanguageEnglish
Part of speechNoun
IPA/pəɹˈfjuʒən/
Letters9
Frequency rank#43,308
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “perfusion”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).perfusionlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “penile” (#43,307), “pessimist” (#43,309), “physiotherapist” (#43,310). Among 4,417 “P” headwords, “perfusion” is #43,308. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around perfusion (IPA /pəɹˈfjuʒən/), anoun. Corpus frequency is #43,308 among 4,417 “P” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for perfusion, with forms such as "eprfusion", "pefrusion", and "perffusion". 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 2 confusable-pair relationships, "persuasion", "percussion", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle French perfusion, from Latin perfūsiō (“the act of pouring over”). The correct English form is perfusion, spelled P-E-R-F-U-S-I-O-N.

Definition

  1. 1
    The act of perfusing, the passage of fluid through the circulatory system.
  2. 2
    The introduction of a drug or nutrients through the bloodstream in order to reach an internal organ or tissues.

Recorded use

Wiktionary example

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

  1. If there is no pulse, or if the pulse rate is less than 60 beats per minute with signs of poor perfusion (eg, poor skin color, unconscious), perform CPR.

Etymology

From Middle French perfusion, from Latin perfūsiō (“the act of pouring over”).

This word in other languages

perfusión(Español)perfusion(Français)Durchblutung(Deutsch)

Common misspellings

Also misspelled as:

  • eprfusion
  • pefrusion
  • perffusion
  • perfsuion
  • perfuison
  • perfusino
  • perfusionn
  • perfusoin
  • perfussion
  • perfution
  • perrfusion
  • perufsion
  • pperfusion
  • prefusion

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of perfusion - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

eprfusion2pefrusion2perffusion1perfsuion2perfuison2perfusino2perfusionn1perfusoin2
Edit distance from "perfusion"

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 "perfusion"?
"perfusion" is spelled P-E-R-F-U-S-I-O-N. The IPA pronunciation is /pəɹˈfjuʒən/.
What does "perfusion" mean?
As a noun, "perfusion" means: The act of perfusing, the passage of fluid through the circulatory system.
What words are commonly confused with "perfusion"?
"perfusion" is commonly confused with "persuasion", "percussion". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "perfusion"?
The IPA (International Phonetic Alphabet) transcription for "perfusion" is /pəɹˈfjuʒən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "perfusion"?
From Middle French perfusion, from Latin perfūsiō (“the act of pouring over”). 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 "perfusion", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

pessimist#43,309overstate#43,300oceanside#43,292rereading#43,342

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

overcooked14 variantsrejuvenate14 variantsLichfield14 variantsKarlsruhe14 variants

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

Source: FrequencyWords open word-frequency list