DEF meaning in Maths ?

Answer: What is Definite mean?

In linguistics, definiteness is a semantic feature of noun phrases (NPs), distinguishing between referents or senses that are identifiable in a given context (definite noun phrases) and entities which are not (indefinite noun phrases). The prototypical definite NP picks out a unique, familiar, specific referent.

There is considerable variation in the expression of definiteness across languages, and some languages such as Japanese do not generally mark it. In others, such as English, it is usually marked by the selection of determiner. In still other languages, such as Danish, definiteness is marked morphologically.

The theoretical distinction between grammatical definiteness and cognitive identifiability has the advantage of enabling us to distinguish between a discrete (grammatical) and a non-discrete (cognitive) category.[p. 84]

reference

Full Form	Category
Daily Electronic Feed	Academic & Science
Diamond Empowerment Fund	Business
Diesel Exhaust Fluid	Business
Defense Entrepreneurs Forum	Community
Days End Farm	Community
Default	Computing
Direct Equipment Failure	Computing
Data Element Framework	Computing
Digital Empowerment Foundation	Computing
DEFFECT	Cryptocurrency
Design Exchange Format	File Type
Geoworks Esp Assembly Header File	File Type
Smartware Ii Data Definition	File Type
Defaults - Definitions	File Type
Tlink - Wlink Linker Definition File	File Type
Deutsch Englische Freundschaft	General
Dungeon Enemies and Fate	General
Dog Egg Federation	General
Drengin Elite Fleet	General
Double Exhaust Filter	General
Dynamic Efficiency And Fidelity	General
Dutch Elite Force	General
Data Exchange Framework	General
Delta Echo Force	General
Defeated Example For	General
Door Edge Film	General
Diesel Exhaust Filter	General
Driver Education Foundation	General
Defroster	General
Diesel Emissions Fluid	General
Defile	Governmental
Definite	Maths
Defecation	Medical
Deferred	Medical
Deficient	Medical
Deaf	Medical
Development and Evaluation Facility	Military and Defence
Definition	Space Science
Defend	Sports
Defender	Sports