Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A performance rating for diesel fuels, with a higher number indicating greater fuel efficiency. The number corresponds to the percentage of cetane in a cetane-heptamethylnonane mixture, or (and originally) in a cetane-methylnaphthalene mixture, with the same ignition performance as the fuel being rated.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
performance rating ofdiesel fuel corresponding to thepercentage of cetane in a mixture withisocetane (or, formerly,methylnaphthalene ) that would have the same performance.
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