4 syllables: Fi, bri, lla, tion. Stress on lla.
fib-ril-AY-shuhn
/ˌfɪbɹɪˈleɪʃən/
Fibrillation is pronounced fib-ril-AY-shuhn (/ˌfɪbɹɪˈleɪʃən/). It has four syllables (Fi-bri-lla-tion), with the stress on "lla". Fibrillation is a medical noun referring to rapid, irregular muscular contractions, especially of the heart or nerves. It denotes a chaotic, unsynchronized rhythm that prevents effective pumping or signaling. The term is commonly used in clinical or research contexts and implies serious or emergent cardiovascular or neuromuscular activity.
nounFibrillation is a medical noun referring to rapid, irregular muscular contractions, especially of the heart or nerves. It denotes a chaotic, unsynchronized rhythm that prevents effective pumping or signaling. The term is commonly used in clinical or research contexts and implies serious or emergent cardiovascular or neuromuscular activity.
How to Pronounce Fibrillation
"The patient was diagnosed with atrial fibrillation after an irregular heartbeat was detected."
"Researchers studied fibrillation patterns in nerve fibers to understand neural signaling."
"During the arrhythmia episode, fibrillation caused the heart to lose effective pumping efficiency."
Break it into syllables: fi-bri-lla-tion. IPA (US/UK/AU) is /ˌfɪ-brɪ-ˈleɪ-ʃən/ for many speakers, with stress on the third syllable as ‘-la-’ in many pronunciations. Start with a light 'f' then a short 'i' as in 'sit,' followed by a weak 'br' cluster, an ‘ill’ sounding like ‘lay’ in some regions, and end with a clear ‘tion’ /-ʃən/. Keep the first three syllables quick, and place the main emphasis on the ‘lay’ portion: fi-bri-LA-tion. Audio reference: consult medical pronunciation resources or a quality dictionary’s audio for confirmation.
Common errors include misplacing the primary stress (often placing it on the initial syllable), pronouncing the ‘br’ cluster too softly (leading to ‘fibri-ulation’), and misreading the final ‘-tion’ as ‘-tion’ with a stronger 'shun' rather than the reduced /-ʃən/. To correct: emphasize the /ˈleɪ/ portion, ensure /brɪ/ is clearly pronounced, and end with a light, unstressed /-ʃən/. Record yourself to verify the rhythm: FI-bril-LA-tion as a three-beat rhythm.
In US English you’ll hear /ˌfɪ-brɪ-ˈleɪ-ʃən/ with a rhotic 'r' influence and a clearer /ɪ/ in the first syllable. UK speakers often reduce the middle vowel more and may have slight vowel shifts like /ˌfɪ-brɪ-ˈleɪ-ʃən/. Australian English tends to be closer to non-rhotic variants but with a broader /ɪ/ in the initial syllable and a barely audible schwa in the second, depending on speaker. The key is that the /ˈleɪ/ syllable remains stressed and the final /-ʃən/ is soft.
The difficulty lies in the multi-syllabic rhythm and the consonant cluster /br/ in the middle, plus the long diphthong /eɪ/ in the stressed syllable. Many speakers also bifurcate the syllables unevenly, accenting the wrong segment. Practice by isolating and timing the /ˈleɪ/ peak, smoothing the /brɪ/ cluster, and keeping the /-ʃən/ finale light and fast. IPA helps you track the subtle vowel shifts and the exact consonant timings.
Note the stem 'fibri-' versus ‘fib-’ at the start; although ‘fibri-’ seems to prompt a longer i, many pronunciations treat the first two syllables quickly, with the stress landing on the /ˈleɪ/ portion. Keep the initial vowels short and crisp: /ˌfɪ-brɪ-ˈleɪ-/ and then finish /ʃən/. Visualize the word as three beats: fi-bri-LA-tion, ensuring the 'LA' is the nucleus.
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Fibrillation derives from the Latin fibra, meaning ‘fiber,’ plus the French diminutive -ill- and the New Latin -ation, forming a noun that denotes a process or action. The root fibra links to the idea of fibrous tissue or fibrils, which conceptually connects to the idea of fibers in muscles or cardiac tissue. The suffix -ation marks the action or result of a process. The term entered medical usage to describe a chaotic, fiber-like, irregular contraction. Early medical literature in the 19th and early 20th centuries used fibrillation to characterize abnormal muscular activity, particularly in cardiovascular contexts, as techniques for measuring and imaging improved. Over time, fibrillation broadened to include neural contexts, but the cardiovascular sense remains predominant in common usage. The word’s precise connotation—rapid, unsynchronized activity—has sharpened with modern clinical diagnostics such as ECG, highlighting its urgency and severity. First known uses appear in early clinical reports describing irregular cardiac contractions, evolving in medical terminology to distinguish between atrial and ventricular fibrillation, and later to generalize to other muscular systems showing chaotic rhythm. Today, fibrillation is widely recognized in cardiology and neurology as a sign of pathology requiring intervention.
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Words that rhyme with "Fibrillation"
-ion sounds
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