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Hydrogenation vs Undefined - What's the difference?

hydrogenation | undefined |

As a noun hydrogenation

is hydrogenation.

As an adjective undefined is

lacking a definition or value.

hydrogenation

English

Noun

  • (chemistry) the chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.

    • 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