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Umbra vs Undefined - What's the difference?

umbra | undefined |

As a noun umbra

is a shadow.

As an adjective undefined is

lacking a definition or value.

umbra

English

Noun

(en-noun)
  • A shadow.
  • (astronomy) The central region of a sunspot.

    • Derived terms

    * adumbrated * penumbra * umbral * umbrella

    Anagrams

    * * ----

    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