Diesel exhaust fluid - Wikipedia
Passenger car using an AdBlue pump Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel …
DEF Definition & Meaning - Merriam-Webster
Feb 24, 2026 · The meaning of DEF is definitely. How to use def in a sentence.
Meanings & Definitions of English Words | Dictionary.com
22 hours ago · The world's leading online dictionary: English definitions, synonyms, word origins, example sentences, word games, and more. A trusted authority for 25+ years!
DEF | English meaning - Cambridge Dictionary
DEF definition: 1. very good: 2. very good: . Learn more.
def - Wiktionary, the free dictionary
Jun 14, 2026 · Russell Simmons, a founder of the company [Def Jam Recordings], said that his partner, in designing the logo for the company’s record label, may have been the first to set def down in …
DEF Definition & Meaning | Dictionary.com
DEF definition: definitely. See examples of def used in a sentence.
What Is DEF and How Does It Work? - MotorTrend
Jul 29, 2024 · Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.
Definition - Wikipedia
A definition states the meaning of a word using other words. This is sometimes challenging. Common dictionaries contain lexical descriptive definitions, but there are various types of definition – all with …
DEF | definition in the Cambridge English Dictionary
DEF meaning: 1. very good: 2. very good: . Learn more.
DEFINING Definition & Meaning - Merriam-Webster
Jun 17, 2026 · The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.