A definition states the meaning of a word using other words. Common dictionaries contain lexical descriptive definitions but there are various types parent definition wikipedia definition – all with different purposes and focuses.
In mathematics, a definition is used to give a precise meaning to a new term, instead of describing a pre-existing term. Definitions and axioms are the basis on which all of modern mathematics is constructed. In modern usage, a definition is something, typically expressed in words, that attaches a meaning to a word or group of words. The word or group of words that is to be defined is called the definiendum, and the word, group of words, or action that defines it is called the definiens. The definiens is not the meaning of the word defined, but is instead something that conveys the same meaning as that word.
There are many sub-types of definitions, often specific to a given field of knowledge or study. This,” , “is an Asian elephant. An intensional definition, also called a connotative definition, specifies the necessary and sufficient conditions for a thing being a member of a specific set. An extensional definition, also called a denotative definition, of a concept or term specifies its extension.