hypoplasia

noun

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

"hypoplasia" is a 10-letter English headword indexed on PlainSpell.

The verdict

“hypoplasia” is uncommon English (frequency #87,391 among 2,646 “H” headwords), classed as a noun. The kind of spelling people second-guess.

#87,391
frequency rank, English
2,646
“H” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Underdevelopment or incomplete development of a tissue or organ, especially when caused by an inadequate or below-normal number of cells.

Corpus desk

Index EN-hypoplasia · hypoplasia · English

hypoplasia · rank #87,391 · 0 variants · 0 confusables

  • FREQ-RARE #87,391
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,646
  • PHOTO-FINISH hygroscopic

Nearest frequency peer: hygroscopic (-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 “hypoplasia”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for hypoplasia
PropertyValue
Headwordhypoplasia
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#87,391
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “hypoplasia” 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).hypoplasiafalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “hygroscopic” (#87,390), “hydrofluoric” (#87,389), “improver” (#87,395). Among 2,646 “H” headwords, “hypoplasia” is #87,391. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

hypoplasia is uncommon English at frequency #87,391 among 2,646 “H” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Underdevelopment or incomplete development of a tissue or organ, especially when caused by an inadequate or below-normal number of cells.".

No generated misspelling entries exist for hypoplasia in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From hypo- + -plasia. The correct English form is hypoplasia, spelled H-Y-P-O-P-L-A-S-I-A.

Definition

  1. 1
    Underdevelopment or incomplete development of a tissue or organ, especially when caused by an inadequate or below-normal number of cells.

Recorded use

Wiktionary examples

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

  1. 1995, William M. Thurlbeck, 2. Lung Growth and Development, William M. Thurlbeck, Andrew Churg (editors), 2nd edition, Thieme Medical Publishers, Pathology of the Lung, page 56, Since the renal system and the lung develop at the same time, there has been repeated speculation that pulmonary hypoplasia and renal anomalies may be linked by a common developme…
  2. 2022, Robert A. Foster, Christopher Premanandan, Chapter 19: Male Reproductive System, James F. Zachary (editor), Pathologic Basis of Veterinary Disease, 7th edition, Elsevier, page 1320, Hypoplasia of the testes is a common condition and DSD.

Etymology

From hypo- + -plasia.

This word in other languages

Hypoplasie(Deutsch)

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 "hypoplasia"?
"hypoplasia" is spelled H-Y-P-O-P-L-A-S-I-A.
What does "hypoplasia" mean?
As a noun, "hypoplasia" means: Underdevelopment or incomplete development of a tissue or organ, especially when caused by an inadequate or below-normal number of cells.
What is the origin of the word "hypoplasia"?
From hypo- + -plasia. 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 "hypoplasia", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

housebound#87,380kimberlite#87,455Kincardine#87,456Kodachrome#87,463

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

Source: FrequencyWords open word-frequency list