Standard Lemma guide

diastole

noun · 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /daɪˈæstəli/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: D AY0 AE1 S T AH0 L IY2 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The phase or process of relaxation and dilation of the heart chambers, between contractions, during which they fill with blood; an instance of the process.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Topics: medicine, physiology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The lengthening of a vowel or syllable beyond its typical length.

Definition source: English Wiktionary via Wiktextract

Usage: rhetoric, uncountable, usually

Topics: human-sciences, linguistics, phonology, prosody, sciences

Examples

  • 1815 March and June, On the Greek and Latin Accents, The Classical Journal, Volume XI, page 81, I have inserted diastole which is omitted in Putschius, an insertion which both the complement, and the subsequent text make necessary.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The hypodiastole, a textual or punctuation mark formerly used to disambiguate homonyms in Greek.

Definition source: English Wiktionary via Wiktextract

Usage: Greek, uncountable, usually

Topics: grammar, human-sciences, linguistics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

the widening of the chambers of the heart between two contractions when the chambers fill with blood

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: pulse, pulsation, heartbeat, beat

History

Etymology

From Ancient Greek διαστολή (diastolḗ, “separation, drawing asunder”), from διά (diá, “apart”) + στέλλειν (stéllein, “send”).

Across languages

Translations

18 source translations are retained for this English entry.

  • Arabic: اِنْبِسَاط (inbisāṭ) — relaxation of the heart
  • Catalan: diàstole — relaxation of the heart
  • Danish: diastole — relaxation of the heart
  • Georgian: დიასტოლა (diasṭola) — relaxation of the heart
  • German: Diastole — relaxation of the heart
  • German: Herzerschlaffung — relaxation of the heart
  • Greek: διαστολή (diastolí) — relaxation of the heart
  • Hungarian: diasztolé — relaxation of the heart
  • Italian: diastole — relaxation of the heart
  • Norwegian Bokmål: diastole — relaxation of the heart
  • Norwegian Nynorsk: diastole — relaxation of the heart
  • Polish: rozkurcz — relaxation of the heart
  • Portuguese: diástole — relaxation of the heart
  • Romanian: diastolă — relaxation of the heart
  • Russian: диастола (diastola) — relaxation of the heart
  • Spanish: diástole — relaxation of the heart
  • Vietnamese: trương tâm — relaxation of the heart
  • Vietnamese: tâm trương — relaxation of the heart