Standard Lemma guide

hypotonia

noun · 3 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: /ˌhaɪpəʊˈtəʊnɪə/
  • General-American: /ˌhaɪpoʊˈtoʊnɪə/
  • rhymes with -təʊnɪə

1

noun

Meaning 1

A state of reduced pressure of the intraocular fluid.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, ophthalmology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An abnormal loss of muscle tone.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: floppy infant syndrome, floppy baby syndrome

Antonyms: none provided

3

noun

Meaning 3

(of muscular tissue) the state of being hypotonic

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: hypotonus, hypotonicity

Antonyms: hypertonia

Broader terms: tonicity, tonus, tone

History

Etymology

From New Latin hypotonia, from hypo- + Ancient Greek τόνος (tónos) + -ia. By surface analysis, hypo- + -tonia.

Across languages

Translations

4 source translations are retained for this English entry.

  • Catalan: hipotonia — abnormal loss of muscle tone
  • Czech: hypotonie — abnormal loss of muscle tone
  • French: hypotonie — abnormal loss of muscle tone
  • Spanish: hipotonía — abnormal loss of muscle tone