PUHL-siz
/ˈpʌlsɪz/
pulses is pronounced PUHL-siz (/ˈpʌlsɪz/). Pulses refers to brief, regular bursts or oscillations of energy, light, or sound, often used to describe rhythmic bursts in electrical signals, biological activity, or nutrient flow. As a verb, it can mean to throb or pulse with a steady beat. In plural form, it also denotes multiple rhythmic events or signals. The term emphasizes periodic, repeating units rather than a single event.
Pulses refers to brief, regular bursts or oscillations of energy, light, or sound, often used to describe rhythmic bursts in electrical signals, biological activity, or nutrient flow. As a verb, it can mean to throb or pulse with a steady beat. In plural form, it also denotes multiple rhythmic events or signals. The term emphasizes periodic, repeating units rather than a single event.
"The heartbeat accelerates in pulses during exercise."
"The device delivers pulses of ultraviolet light at precise intervals."
"Electric signals in the neuron fire in pulses."
Pronounce as /ˈpʌl.sɪz/. The first syllable has primary stress; use a short, open /ʌ/ as in 'cup' and a clear /l/ with the tongue touching the alveolar ridge. The second syllable starts with /s/ transitioning into a voiced /z/; keep the /z/ voiced and not devoiced in natural speech. Think: PUL-siz, with a subtle link between syllables in fluent speech. Listen to native samples to hear the final voiced z. IPA: /ˈpʌl.sɪz/.
Common errors include pronouncing the first syllable with a full /ʊ/ as in 'pull' instead of /ʌ/, which shifts meaning and clarity. Another mistake is devoicing the final /z/ to /s/ in fast speech, making it sound like 'pulsəs'; keep the final sound voiced. Some speakers insert an extra vowel between syllables, saying /ˈpʌl.əs.ɪz/; keep it two syllables with a clean /l/ followed by /s/ and /z/.
In US/UK/AUS, the primary stress remains on the first syllable. US and UK share /ˈpʌl.sɪz/. In Australian English, you may hear a slightly more centralized vowel in /ʌ/ and a non-rhotic tendency in some speakers, but /ˈpʌl.sɪz/ is still common; final /z/ remains voiced. Rhoticity affects surrounding vowels rather than the pulse itself; watch for subtle vowel length and flapping tendencies in American casual speech that can influence perceived duration between syllables.
The challenge lies in sustaining two fast, distinct syllables with a voiced final /z/ after a /s/ boundary. The /l/ must be clearly articulated without crowding the preceding /ʌ/. Additionally, the transition from /s/ to /z/ requires precise voicing shift; in rapid speech people may devoice /z/ or merge sounds. Mastery hinges on clean articulation of the /l/ and the /s/–/z/ cluster, and practicing the two-syllable rhythm until it sounds fluid.
Yes. When used as a plural noun or verb, the word emphasizes recurring units; speakers often compress the second syllable slightly, producing a quick /sɪz/ or a light /z/ depending on the preceding vowel and the pace. Unique to this word is the /l/ in the first syllable, which should be distinctly released before the alveolar sibilant onset of the second syllable. Focus on a crisp /ɫ/ or light /l/ followed by an explicit /s/ then /z/ for natural rhythm.
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Pulses derives from the noun pulse, which originates from Old French pousle or Latin pulsus, from the verb pellere meaning to push or drive. The root idea centers on a push or strike; in early medical usage, pulse referred to the rhythmic throbbing felt under the skin when the heart contracts. By the 15th century, pulse broadened to describe rhythmic surges in various contexts, including wind, light, or mechanical systems. The specialized sense of electrical or optical pulses emerged with advances in physics and engineering in the 19th and 20th centuries, aligning with the concept of discrete, periodic events. The plural form pulses has been in use since the 19th century to denote multiple instances of such bursts, particularly in waveform analysis and signal processing. First known use in English appears in scientific texts exploring rhythmic phenomena and physiological signals, gradually entering broader technical discourse as instrumentation matured. Over time, pulses became a common descriptor in computing, communications, and physiology, maintaining its core sense of regular, instantaneous units that convey information or energy.
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Words that rhyme with "pulses"
-les sounds
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