Standard Lemma guide

hypotonic

adj · 4 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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  • UK: /hʌɪpə(ʊ)ˈtɒnɪk/
  • US: /haɪpəˈtɑnɪk/
  • US: /haɪpoʊˈtɑnɪk/

1

adj

Meaning 1

Having a lower osmotic pressure than another.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Showing less than normal tension in the muscles or muscle tissue.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective

Meaning 3

(of a solution) having a lower osmotic pressure than a comparison solution

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: isotonic, hypertonic

4

adjective

Meaning 4

(of living tissue) lacking normal tone or tension

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: hypertonic

History

Etymology

Etymology tree Proto-Indo-European *upó Ancient Greek ῠ̔πό (hŭpó) Ancient Greek ὑπο- (hupo-)der. English hypo- Proto-Indo-European *ten- Proto-Indo-European *-os Proto-Indo-European *tónos Proto-Hellenic *tónos Ancient Greek τόνος (tónos) Proto-Indo-European *-kos Proto-Hellenic *-kos Ancient Greek -κός (-kós) Ancient Greek -ικός (-ikós) Ancient Greek τονῐκός (tonĭkós) English tonic English hypotonic From hypo- + tonic.

Across languages

Translations

8 source translations are retained for this English entry.

  • Chinese Mandarin: 低渗 (dīshèn) — having a lower osmotic pressure than another
  • Czech: hypotonický — having a lower osmotic pressure than another
  • German: hypoton — having a lower osmotic pressure than another
  • German: hypotonisch — having a lower osmotic pressure than another
  • Portuguese: hipotônico — having a lower osmotic pressure than another
  • Portuguese: hipotónico — having a lower osmotic pressure than another
  • Russian: гипотони́ческий (gipotoníčeskij) — having a lower osmotic pressure than another
  • Turkish: hipotonik — having a lower osmotic pressure than another