unburned
1
3.9
- adjective
- /ʌnˈbɜrnd/
- Specialized
- In L.A. smog, the soupy mix of unburned and partially burned hydrocarbons reacts with hydroxyl radicals and oxygen to form organic peroxides.
- unburned hydrocarbons
- unburned carbon
Examples
-
In pipeline applications, methane typically represents more than 90 percent of the unburned hydrocarbon present in the exhaust stream.
Academic text (1996) -
The sound of a car backfiring occurs when unburned fuel vapor is ignited by a very hot muffler upon the car being turned off.
-
But from the ashes, I withdraw part of an unburned stick that has already been dedicated to other people's prayers.
Fiction book (2002) -
The smell of unburned hydrocarbons lingered in the air as they buzzed by.
Blog text (24) -
With less oxygen available per cubic meter of atmosphere, the efficiency of fossil-fuel combustion diminishes, and a relatively large amount of unburned hydrocarbons is created.
Academic text (1993) -
Moreover, intense, year-round sunshine at this latitude and elevation reacts with unburned hydrocarbons to form ozone-rich photochemical smog.
Academic text (1993) -
The unburned fuel in the tank must be removed before the engine can function properly.
-
He noticed the unburned carbon residue left on the burner after the experiment.
-
The technician explained how unburned hydrocarbons can contribute to air pollution.
Synonyms
Antonyms
- Specialized
9
2.1
A material that people heat to a high temperature to change its color or texture
How Burned
Surface Forms
Morphology
Etymology
Unburned combines un- 'not' with burn 'to be used up by fire'. So unburned describes fuel or material that was 'not used up by burning' and remains after an incomplete burn.