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How to Pronounce DEF?

Correct pronunciation for the word "DEF" is [dˈɛf], [dˈɛf], [d_ˈɛ_f].

What are the misspellings for DEF?

"DEF" in context

DEF stands for diesel exhaust fluid, a special solution designed to reduce diesel emissions from cars. DEF is a non-toxic, odorless, and colorless liquid that is injected into the vehicle's fuel supply and is used in vehicles with diesel engines to reduce the amount of nitrogen oxide in exhaust fumes. The fluid works by causing chemical reactions with nitrogen oxide and other pollutants in a process known as Selective Catalytic Reduction (SCR). The result is fewer pollutants being released into the environment, making DEF a valuable tool in helping to reduce global pollution. The EPA has suggested that DEF use in vehicles can reduce emissions by up to 90 percent.

Usage over time for DEF:

This graph shows how "DEF" have occurred between 1800 and 2008 in a corpus of English books.

4 words made out of letters DEF

3 letters

2 letters

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