How to Pronounce Tetralogy of Fallot
Definition, meaning, and phonetic spelling
Tetralogy of Fallot Pronunciation
teh-TRAL-oh-jee uv fah-LOH
Stressed syllable in ALL CAPS · hyphens separate syllables
Syllable Breakdown
teh
TRAL
stress here
oh
jee uv fah
LOH
stress here
5 syllables
What is Tetralogy of Fallot?
A complex congenital heart defect involving four abnormalities occurring together: a ventricular septal defect, pulmonary stenosis, a displaced aorta, and a thickened right ventricle wall. It causes oxygen-poor blood to be pumped to the body, leading to a bluish skin tone (cyanosis), and requires open-heart surgery to correct.
Questions About Tetralogy of Fallot
How do you pronounce Tetralogy of Fallot?
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Tetralogy of Fallot is pronounced teh-TRAL-oh-jee uv fah-LOH. The stress falls on the second syllable of "tetralogy" (TRAL), and on the second syllable of "Fallot" (LOH). Think of it like "teh-TRAL-uh-jee" when you say it out loud.
How do you break Tetralogy of Fallot into syllables?
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Tetralogy breaks into four syllables: te-TRAL-o-gy. Fallot breaks into two syllables: Fal-LOT. When you say the full name together, it's: te-TRAL-o-gy uv Fal-LOT.
What is the most common mispronunciation of this term?
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Many people put the stress on the first syllable, saying TET-ral-oh-jee instead of teh-TRAL-oh-jee. Another common mistake is pronouncing Fallot like "Fal-lot" (rhymes with "allot") instead of "fah-LOH" (rhymes with "pro"). Remember: the stress is in the MIDDLE of the first word, not at the beginning.
What does the word 'tetralogy' mean?
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Tetralogy comes from Greek words: "tetra" means four, and "logy" means a collection or set. So tetralogy literally means "a group of four things." In this medical condition, the four things are four different heart abnormalities that happen together.
Who is 'Fallot' in Tetralogy of Fallot?
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Fallot is not a description—it's the name of a person. The condition is named after Étienne-Louis Arthur Fallot, a French physician who described this combination of four heart problems in the 1800s. Medical conditions are often named after the doctors who first identified them.
What is the short form or abbreviation for Tetralogy of Fallot?
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The abbreviation is TOF, pronounced by spelling out the letters: T-O-F. Doctors and nurses often use this shorter form in conversations and medical records when they're talking about the condition quickly.
What does Tetralogy of Fallot mean in plain English?
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Tetralogy of Fallot is a fancy way of saying "four heart problems that happen at the same time." It's a congenital condition, meaning a person is born with it. The name tells you the problem involves four connected heart abnormalities, not just one.
Can you use Tetralogy of Fallot in a simple sentence?
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Here's an example: "The cardiologist explained that Tetralogy of Fallot is actually four separate heart defects occurring together." Or: "Her grandfather was born with Tetralogy of Fallot, which is why doctors call it a complex congenital condition."

