aromatase

/əˈɹoʊ̯məteɪ̯s/

//əˈɹoʊ̯məteɪ̯s// noun

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

The verdict

“aromatase” is uncommon English (frequency #82,055 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#82,055
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An enzyme responsible for aromatization of androgen hormones into estrogens.

Corpus desk

Index EN-aromatase · aromatase · English

aromatase · rank #82,055 · 0 variants · 0 confusables

  • FREQ-RARE #82,055
  • LEN-LONG 9 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH Aroostook

Nearest frequency peer: Aroostook (+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 “aromatase”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for aromatase
PropertyValue
Headwordaromatase
LanguageEnglish
Part of speechNoun
IPA/əˈɹoʊ̯məteɪ̯s/
Letters9
Frequency rank#82,055
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “aromatase” 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).aromatasefalls 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: “Aroostook” (#82,056), “Aranda” (#82,053), “Ashurst” (#82,059). Among 3,931 “A” headwords, “aromatase” is #82,055. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

aromatase is uncommon English at frequency #82,055 among 3,931 “A” headwords, classed as anoun, transcribed /əˈɹoʊ̯məteɪ̯s/. Rarity is why readers land here mid-draft. Gloss: "An enzyme responsible for aromatization of androgen hormones into estrogens.".

We couldn't generate a plausible misspelling set for aromatase, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This entry carries no recorded etymology, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is aromatase, spelled A-R-O-M-A-T-A-S-E.

Definition

  1. 1
    An enzyme responsible for aromatization of androgen hormones into estrogens.

Synonyms

estrogen synthaseestrogen synthetase

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 "aromatase"?
"aromatase" is spelled A-R-O-M-A-T-A-S-E. The IPA pronunciation is /əˈɹoʊ̯məteɪ̯s/.
What does "aromatase" mean?
As a noun, "aromatase" means: An enzyme responsible for aromatization of androgen hormones into estrogens.
How do you pronounce "aromatase"?
The IPA (International Phonetic Alphabet) transcription for "aromatase" is /əˈɹoʊ̯məteɪ̯s/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "aromatase" come from?
"aromatase" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 "aromatase", not the corpus desk frequency band.

Same letter count

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

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

Source: FrequencyWords open word-frequency list