DEF Definition & Meaning - Merriam-Webster
Feb 24, 2026 · The meaning of DEF is definitely. How to use def in a sentence.
Diesel exhaust fluid - Wikipedia
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 engine. Specifically, DEF is an …
Meanings & Definitions of English Words | Dictionary.com
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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.
DEF | English meaning - Cambridge Dictionary
DEF definition: 1. very good: 2. very good: . Learn more.
def - Wiktionary, the free dictionary
Jun 14, 2026 · Failing to see the word's antecedents, I suspected that def was either bogus or an orphan, lost to its slang ancestors through mispronunciation or misspelling […]
DEF Definition & Meaning | Dictionary.com
DEF definition: definitely. See examples of def used in a sentence.
Definition - Wikipedia
Common dictionaries contain lexical descriptive definitions, but there are various types of definition – all with different purposes and focuses.
DEF | definition in the Cambridge English Dictionary
DEF meaning: 1. very good: 2. very good: . Learn more.
def noun - Definition, pictures, pronunciation and usage notes | Oxford ...
Definition of def noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.