Standard Lemma guide

hyponatremia

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/
  • General-American: /ˌhaɪ.poʊˌneɪˈtɹiː.mi.ə/
  • rhymes with -iːmiə

1

noun

Meaning 1

An abnormally low concentration of sodium in blood plasma.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: eunatremia, hypernatraemia, hypernatremia

Broader terms: dysnatraemia, dysnatremia

2

noun

Meaning 2

abnormally low level of sodium in the blood; associated with dehydration

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: hypernatremia

Broader terms: symptom

History

Etymology

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

Across languages

Translations

7 source translations are retained for this English entry.

  • Finnish: hyponatremia — A low concentration of sodium in blood
  • French: hyponatrémie — A low concentration of sodium in blood
  • Galician: hiponatremia — A low concentration of sodium in blood
  • Italian: iponatriemia — A low concentration of sodium in blood
  • Italian: iposodiemia — A low concentration of sodium in blood
  • Spanish: hiponatremia — A low concentration of sodium in blood
  • Swedish: hyponatremi — A low concentration of sodium in blood