3 syllables: pul, sa, tion. Stress on tion.
puhl-SAY-shuhn
/pʌlˈseɪʃən/
pulsation is pronounced puhl-SAY-shuhn (/pʌlˈseɪʃən/). It has three syllables (pul-sa-tion), with the stress on "tion". Pulsation refers to the action or process of pulsating—alternating expansion and contraction, as in a heartbeat or a rhythmic wave. It denotes a regular throbbing or repeated surge of energy, often describing mechanical, biological, or acoustic phenomena. The term emphasizes periodic motion, rhythm, and the steady cycle of increase and decrease in intensity or volume.
Pulsation refers to the action or process of pulsating—alternating expansion and contraction, as in a heartbeat or a rhythmic wave. It denotes a regular throbbing or repeated surge of energy, often describing mechanical, biological, or acoustic phenomena. The term emphasizes periodic motion, rhythm, and the steady cycle of increase and decrease in intensity or volume.
"The heart’s pulsation is most easily felt at the neck’s carotid artery."
"In music production, pulsation is achieved by modulating amplitude to create a rhythmic throb."
"Researchers studied the pulsation of stars to understand their internal structure."
You pronounce it as pul- (pʌl) followed by sa- (ˈseɪ) then -tion (ʃən). The primary stress is on the second syllable: pul-SA-tion. In IPA: US/UK/AU: /ˌpʌlˈseɪʃən/. Place the tongue high at the back for the ‘p’ stop, lips neutral, then the mid-front vowel in 'sa' with a clear 'ay' quality, and finish with a light schwa-plus-n.
Common errors include: 1) Misplacing stress by saying pul-SA-tion with the stress on the first syllable. 2) Reducing the second syllable to a quick schwa without the clear 'ay' vowel, making it sound like pul-SE-tion. 3) Slurring the transition between 'l' and 'sa' leading to a 'pol-say-shun' feel. Correction: practice the second syllable with a crisp face of 'ay' (eɪ) and keep the /ʃən/ ending as a light, separate syllable.
US/UK/AU share /ˌpʌlˈseɪʃən/ with stress on the second syllable, but rhoticity and vowel quality differ slightly. US commonly preserves a clearer /ɹ/ before the vowel in connected speech; UK tends toward non-rhoticity and a slightly shorter, tighter /ɪ/ in some speakers; AU often aligns closer to UK patterns with subtle vowel widening in /æ/ or /eɪ/ depending on speaker. Overall, the main differences lie in vowel length and the rhotic /r/ presence in fast, casual speech.
Two main challenges: the two consonant clusters around the middle and the separate, stressed second syllable. The sequence /l/ followed by /s/ in 'l sa' can trip speakers who start the second syllable too soon. The long vowel in 'sa' (/eɪ/) also requires careful tongue elevation without turning into a diphthong. Practicing the exact hook of /ˈseɪ/ in the middle helps establish accurate rhythm and keeps the ending /ʃən/ crisp.
The middle syllable carries the primary vowel nucleus /eɪ/. Keeping that long vowel steady is crucial; you should avoid turning it into a short 'e' or a heavy 'i' sound. The end sounds /ʃən/ should be light and almost unstressed, so the primary focus remains on the middle syllable. Practicing with slow tempo and gradually increasing speed helps you nail the rhythm without crowding the final syllable.
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Pulsation comes from the Latin pulsare, meaning to strike or beat, via pulsus, a past participle meaning a beating or pulse. The root puls- (to beat) belongs to a broader Latin family tied to pulsus (pulse). In English, pulsation emerged in the late Middle English period through Old French pulsation and Latin roots, carrying forward the sense of periodic beating or rhythmic fluctuation. The word evolved to denote both physiological pulses (heartbeat) and other periodic throbs or oscillations in physics and engineering. Over time, it broadened to describe any regular, cyclic expansion and contraction—whether in mechanical systems, acoustic envelopes, or stellar and solar dynamics—while maintaining its core emphasis on rhythmic, pulsatile movement and intermittent surges. First known use in English traces to the 15th-16th centuries, aligning with scientific and medical discourse that sought precise terms for observable, regular pulsations. In many modern contexts, pulsation is paired with adjectives like rhythmic, steady, or irregular, and frequently collocates with fields like cardiology, acoustics, astronomy, and fluid dynamics, reflecting its cross-disciplinary relevance as a descriptive mechanism for periodic motion.
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Words that rhyme with "pulsation"
-ion sounds
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