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Petrology vs Undefined - What's the difference?

petrology | undefined |

As a noun petrology

is (geology) the study of the origin, composition and structure of rock.

As an adjective undefined is

lacking a definition or value.

petrology

English

Noun

(wikipedia petrology) (-)
  • (geology) the study of the origin, composition and structure of rock

    • Related terms

    * petrography * petrologist

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined