endometrium
/ˌɛndəˈmiːtɹi.əm/
"endometrium" is a 11-letter English headword indexed on PlainSpell.
The verdict
“endometrium” is uncommon English (frequency #80,424 among 2,246 “E” headwords), classed as a noun. The kind of spelling people second-guess.
- #80,424
- frequency rank, English
- 2,246
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The mucous membrane that lines the uterus in mammals and in which fertilized eggs are implanted.
Corpus desk
Index EN-endometrium · endometrium · English
endometrium · rank #80,424 · 0 variants · 0 confusables
- FREQ-RARE #80,424
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,246
- PHOTO-FINISH encasing
Nearest frequency peer: encasing (-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 “endometrium”
Sparse band: bars invert rank so rarer forms read shorter
- Eiger
Eiger
19,583 corpus weight
- elastin
elastin
19,582 corpus weight
- encasing
encasing
19,578 corpus weight
- endometrium
endometrium
19,577 corpus weight
- Enriquez
Enriquez
19,575 corpus weight
- enum
enum
19,574 corpus weight
What this shows Long-tail view: where “endometrium” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | endometrium |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌɛndəˈmiːtɹi.əm/ |
| Letters | 11 |
| Frequency rank | #80,424 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “endometrium” in English
Rare enough to double-check
endometrium is uncommon English at frequency #80,424 among 2,246 “E” headwords, classed as anoun, transcribed /ˌɛndəˈmiːtɹi.əm/. Rarity is why readers land here mid-draft. Gloss: "The mucous membrane that lines the uterus in mammals and in which fertilized eggs are implanted.".
We couldn't generate a plausible misspelling set for endometrium, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From endo- (“inner”) + Late Latin metrium (“womb”), from Ancient Greek μήτριον (mḗtrion, “of a mother”). Compare μήτρᾱ (mḗtrā, “womb”). The correct English form is endometrium, spelled E-N-D-O-M-E-T-R-I-U-M.
Definition
- 1The mucous membrane that lines the uterus in mammals and in which fertilized eggs are implanted.
Etymology
From endo- (“inner”) + Late Latin metrium (“womb”), from Ancient Greek μήτριον (mḗtrion, “of a mother”). Compare μήτρᾱ (mḗtrā, “womb”).
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "endometrium", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).