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Infrasound vs Undefined - What's the difference?

infrasound | undefined |

As a noun infrasound

is (physics) sound waves having frequency below the human audible range (below about 20 hz).

As an adjective undefined is

lacking a definition or value.

infrasound

English

Noun

(wikipedia infrasound)
  • (physics) Sound waves having frequency below the human audible range (below about 20 Hz).

    • Related terms

    * infrasonic, infrasonics

    Antonyms

    * ultrasound

    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