vasodilation

noun

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

The verdict

“vasodilation” is uncommon English (frequency #91,118 among 969 “V” headwords), classed as a noun. The kind of spelling people second-guess.

#91,118
frequency rank, English
969
“V” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Dilation or widening of the blood vessels.

Corpus desk

Index EN-vasodilation · vasodilation · English

vasodilation · rank #91,118 · 0 variants · 0 confusables

  • FREQ-RARE #91,118
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 969
  • PHOTO-FINISH Valentinian

Nearest frequency peer: Valentinian (-2 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 “vasodilation”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for vasodilation
PropertyValue
Headwordvasodilation
LanguageEnglish
Part of speechNoun
Letters12
Frequency rank#91,118
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “vasodilation” in English

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “Valentinian” (#91,116), “uveitis” (#91,115), “vermiculite” (#91,121). Among 969 “V” headwords, “vasodilation” is #91,118. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

vasodilation is uncommon English at frequency #91,118 among 969 “V” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Dilation or widening of the blood vessels.".

The misspelling generator found no plausible variants for vasodilation, a sign its spelling follows regular English conventions. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From vaso- + dilation. The correct English form is vasodilation, spelled V-A-S-O-D-I-L-A-T-I-O-N.

Definition

  1. 1
    Dilation or widening of the blood vessels.

Etymology

From vaso- + dilation.

Antonyms

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 "vasodilation"?
"vasodilation" is spelled V-A-S-O-D-I-L-A-T-I-O-N.
What does "vasodilation" mean?
As a noun, "vasodilation" means: Dilation or widening of the blood vessels.
What is the origin of the word "vasodilation"?
From vaso- + dilation. 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 "vasodilation", 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