4 syllables: di, a, stol, ic. Stress on stol.
deye-uh-STAH-lik
/ˌdaɪəˈstɑlɪk/
diastolic is pronounced deye-uh-STAH-lik (/ˌdaɪəˈstɑlɪk/). It has four syllables (di-a-stol-ic), with the stress on "stol". Diastolic describes the portion of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood. It contrasts with systolic, the phase of contraction. In medical contexts, diastolic pressure is the lower number in a blood pressure reading, representing arterial pressure during relaxation. The term derives from Greek roots referring to dilation and relaxation.
Diastolic describes the portion of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood. It contrasts with systolic, the phase of contraction. In medical contexts, diastolic pressure is the lower number in a blood pressure reading, representing arterial pressure during relaxation. The term derives from Greek roots referring to dilation and relaxation.
"The diastolic phase lasts longer in some individuals with certain cardiovascular conditions."
"Her diastolic reading remained within the normal range after the medication adjusted the systolic pressure."
"The clinician noted a diastolic murmur during the examination."
Pronounce as /ˌdaɪ.əˈstɒl.ɪk/ (British) or /ˌdaɪ.əˈstɑː.lɪk/ (American). The primary stress falls on the second syllable before the final -k: di-as-TOL-ic. Start with a clear /d/ + long /aɪ/ sound, followed by a schwa /ə/, then /ˈstɒl/ or /ˈstɑːl/ depending on the accent, and end with /-ɪk/. Keep the /s/ crisp and the /l/ light; the final syllable is a light, unstressed /-ɪk/. Audio reference: see standard medical dictionary recordings for /ˌdaɪ.əˈstɒl.ɪk/ or /ˌdaɪ.əˈstɑː.lɪk/.
Common mistakes include misplacing the primary stress too late (e.g., /ˌdaɪˌæsˈtɒlˌɪk/), pronouncing the second syllable as /ə/ too short or turning /ɒ/ into /ɑː/ inconsistently, and failing to pronounce the final -ik softly. Correction tips: ensure secondary stress sits on the /st/ syllable, keep /ɒ/ or /ɑː/ accurate to your accent, and lightly articulate the final /-ɪk/ without voicing a strong vowel. Tap the word aloud in slow motion to feel the three core segments: /ˌdaɪ.ə/ + /ˈstɒl/ + /ɪk/.
US: /ˌdaɪ.əˈstɑː.lɪk/ with rhoticity and a broader /ɑː/ in the stressed syllable. UK: /ˌdaɪ.əˈstɒl.ɪk/ with non-rhotic r and a shorter /ɒ/ vowel in the stressed syllable. AU: often /ˌdaɪ.əˈstɒl.ɪk/ similar to UK but with a more centralized /ɒ/ or /ɒː/ depending on speaker; some variability exists. Focus on keeping the second syllable /stɒl/ or /stɑːl/ clearly, and ensuring the final /ɪk/ is light. IPA references guide precise articulation.
The word challenges with three consecutive consonant clusters around the di- with /d/ and /st/ together, and the mid vowel in /ˈstɒl/ or /ˈstɑːl/ that shifts by accent. It also has a secondary stress pattern that can be misaligned if you’re not careful with syllable timing. Focus on segmenting: di- (d aɪ) + as- (ə) + -tol- (stol) + -ic (ɪk), and practice with slow, connected speech to stabilize rhythm and reduce vowel reduction in rapid speech.
No, diastolic is fully phonetic in typical English pronunciation. Each letter contributes to the sounds: d, i, a, s, t, o, l, i, c. The challenge is not silent letters but correct vowel quality and stress placement. Always articulate the second syllable clearly with a strong /ˈstɒl/ or /ˈstɑːl/ and a light final /-ɪk/.
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- US: rhotic /r/ influences surrounding vowels; ensure the /ɪ/ is short and the /ɑː/ is open in the stressed syllable. - UK: non-rhotic; keep /ɒ/ clear and short; stress remains on the /stol/ segment. - AU: mixed; may reduce /ɒ/ slightly; maintain clear /ˈstɒl/ or /ˈstɑːl/ with a light ending. IPA-focused cues: /ˌdaɪ.əˈstɑː.lɪk/ (US), /ˌdaɪ.əˈstɒl.ɪk/ (UK), /ˌdaɪ.əˈstɒl.ɪk/ (AU). - Throughout, practice with minimal pairs showing vowel contrasts: /stɒl/ vs /stɑːl/.
Diastolic comes from the Greek diastole, from dia- ‘through’ or ‘complete’ plus stenai ‘to set up, to contract’ in a sense extended to drawing out or relaxation of a part. The term entered English medical vocabulary in the 19th century as part of the physiology vocabulary describing phases of the heartbeat. The root diastole denotes the relaxation phase of the cardiac cycle, and its usage expands with related terms such as systole (contraction). Over time, diastolic has been used widely beyond cardiology to describe any relaxation interval in vascular or cardiac contexts. The word emphasizes the diastolic interval in medical readings and research, distinguishing it from systolic measurements that capture the peak pressure during heart contraction. The evolution reflects the broader adoption of precise Greek-derived medical terminology in English, enabling clear distinction between the relaxation and contraction phases in clinical practice and literature.
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💡 These words have similar meanings to "diastolic" and can often be used interchangeably.
🔄 These words have opposite meanings to "diastolic" and show contrast in usage.
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Words that rhyme with "diastolic"
-tic sounds
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