How to Pronounce Lactose Intolerance
Definition, meaning, and phonetic spelling
Lactose Intolerance Pronunciation
LAK-tohs in-TOL-er-ants
Stressed syllable in ALL CAPS · hyphens separate syllables
Syllable Breakdown
LAK
stress here
tohs in
TOL
stress here
er
ants
5 syllables
What is Lactose Intolerance?
Lactose intolerance means that you cannot digest foods with lactose in them. Lactose is the sugar found in milk and foods made with milk. After eating foods ...
Definition sourced from MedlinePlus, National Library of Medicine
Questions About Lactose Intolerance
How do you pronounce 'lactose intolerance'?
+
Say it like this: LAK-tohs in-TOL-er-ants. The first word rhymes with 'back dose,' and the second word starts with 'in' like the word 'inside.' Put the emphasis on the first syllable of 'lactose' (LAK) and on the second syllable of 'intolerance' (TOL).
Which syllable gets the stress when you say 'lactose intolerance'?
+
The stress falls on LAK in 'lactose' and on TOL in 'intolerance.' A common mistake is stressing the wrong part of 'intolerance'—people sometimes say in-tol-ER-ants by accident, but the correct way is in-TOL-er-ants.
How many syllables does 'lactose intolerance' have?
+
'Lactose' breaks into 2 syllables: LAC-tose. 'Intolerance' breaks into 4 syllables: in-TOL-er-ance. Together, the full term has 6 syllables.
What does 'lactose' mean?
+
Lactose comes from the Latin word 'lac,' which means milk. So 'lactose' is just the fancy word for the natural sugar found in milk and dairy products.
What does 'intolerance' mean in this term?
+
In this context, 'intolerance' means your body has trouble handling or processing something—in this case, lactose. It's the opposite of 'tolerance,' which would mean your body can handle it without problems.
What's a simpler way to say 'lactose intolerance'?
+
You could say 'trouble digesting dairy' or 'difficulty with milk products.' But 'lactose intolerance' is the official medical term that doctors and healthcare workers use.
How would you use 'lactose intolerance' in a sentence?
+
You might say: 'My friend has lactose intolerance, so she avoids ice cream' or 'People with lactose intolerance often choose non-dairy milk options.' It's a straightforward way to describe the condition when talking to others.
Is there a short abbreviation for 'lactose intolerance'?
+
Yes, sometimes doctors write it as 'LI' in medical records, though the full term 'lactose intolerance' is much more commonly used in everyday speech and writing.
What other medical words share the root 'lactose'?
+
Words like 'lactase' (the enzyme that breaks down lactose) and 'lactation' (the process of producing milk) all come from the same Latin root meaning milk. Learning these related words can help you understand how 'lactose' fits into the bigger picture of milk-related terms.

