niu6 sou3尿素
Jyutpingniu6 sou3
Yaleniuh sou
Definition
Urea; carbamide, or diesel exhaust fluid used to reduce emissions in diesel vehicles.
- urea; carbamide, a compound of nitrogen, carbon, and oxygen
- technicaldiesel exhaust fluid; AdBlue, used to reduce emissions in diesel vehicles
neutraltransportother
How it's used
Outside of chemistry contexts, this term is almost exclusively used by drivers to refer to the diesel exhaust fluid required for modern heavy vehicles. It is rarely used to talk about the biological substance in daily life, where people prefer to use more direct terms for urine. When discussing the automotive product, it is often just called 尿素 by mechanics and drivers.
Measure word
zeon1樽jēunExamples
The car has run out of urea, I need to go refill it.
Do you know how urea helps the car reduce emissions?
Related words
Common phrases
to refill diesel exhaust fluid
automotive urea / AdBlue
Common mistake
Do not confuse this with the biological term for urine, which is 尿. Using 尿素 to refer to human or animal waste will sound like you are talking about chemical fertilizer or industrial waste.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- QuestionsFrom yes or no questions to asking who, what, where, and when. The patterns you need to ask questions naturally in Cantonese.
- ClassifiersCantonese puts a classifier between a number and a noun, and a bare classifier on its own can mean the. Learn the common ones and how to use them.
- ComparisonsHow to say bigger than, the most, the same as, and not as good as. Cantonese uses 過 where Mandarin uses 比, and that catches a lot of learners out.



