Definition of definiendum in English:

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Pronunciation: /diˌfinēˈendəm/

noun (plural definienda /-də/)

A word, phrase, or symbol that is the subject of a definition, especially in a dictionary entry, or that is introduced into a logical system by being defined. Contrasted with definiens.
Example sentences
  • The former is defined, by the ancient logic texts I love, as when a definition uses the same terms in the definiens as in the definiendum.
  • He required of definition that the definiens (the statement of definition) should be synonymous with the definiendum (the expression or concept being defined) but contain no terms in common with it.
  • Consider as a definiendum a universal, such as man, and its definiens, rational animal.


Late 19th century: from Latin, 'that which is to be defined', from the verb definire (see define).

For editors and proofreaders

Syllabification: de·fin·i·en·dum

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