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Flue vs Undefined - What's the difference?

flue | undefined |

As a noun flue

is a pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).

As an adjective undefined is

lacking a definition or value.

flue

English

Noun

(en noun)
  • A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
  • An enclosed passageway in which to direct air or other gaseous current along.
  • A woolly or downy substance; down, nap. Also pl.'' bits of down. ''Obs.

    • Related terms

    * flue gas * open flue * balanced flue

    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