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Ionosphere vs Undefined - What's the difference?

ionosphere | undefined |

As a noun ionosphere

is the part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.

As an adjective undefined is

lacking a definition or value.

ionosphere

English

Noun

(en noun)
  • The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.
  • The similar region of the atmosphere of another planet.

    • Related terms

    * ionospheric * ionospherically * ionospherist

    External links

    *

    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