hyponatremia

/ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/

//ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə// noun

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

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

The verdict

“hyponatremia” is uncommon English (frequency #88,442 among 23,837 “H” headwords), classed as a noun. The kind of spelling people second-guess.

#88,442
frequency rank, English
23,837
“H” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An abnormally low concentration of sodium in blood plasma.

Key facts for hyponatremia
PropertyValue
Headwordhyponatremia
LanguageEnglish
Part of speechNoun
IPA/ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/
Letters12
Frequency rank#88,442
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “hyponatremia” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

hyponatremia is uncommon English at frequency #88,442 among 23,837 “H” headwords, classed as anoun, transcribed /ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/. Rarity is why readers land here mid-draft. Gloss: "An abnormally low concentration of sodium in blood plasma.".

hyponatremia doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From hypo- + natremia or hypo- + natr- + -emia. The correct English form is hyponatremia, spelled H-Y-P-O-N-A-T-R-E-M-I-A.

Definition

  1. 1
    An abnormally low concentration of sodium in blood plasma.

Etymology

From hypo- + natremia or hypo- + natr- + -emia.

This word in other languages

hyponatrémie(Français)

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 "hyponatremia"?
"hyponatremia" is spelled H-Y-P-O-N-A-T-R-E-M-I-A. The IPA pronunciation is /ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/.
What does "hyponatremia" mean?
As a noun, "hyponatremia" means: An abnormally low concentration of sodium in blood plasma.
How do you pronounce "hyponatremia"?
The IPA (International Phonetic Alphabet) transcription for "hyponatremia" is /ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/. 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 "hyponatremia"?
From hypo- + natremia or hypo- + natr- + -emia. 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.

Using “hyponatremia”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is H-Y-P-O-N-A-T-R-E-M-I-A - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list