No·​a·​chi·​an | \nō-ˈā-kē-ən \

Definition of Noachian 

1 : of or relating to the patriarch Noah or his time

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Did You Know?

Students of the Bible know that Noah survived the Great Flood by stowing himself, his family, and two of every kind of creature on his Ark. Noachian is derived from the Hebrew name for Noah. Modern contexts find Noachian used in reference to the Great Flood or, more humorously, to describe torrential rainstorms and flooding reminiscent of the Biblical event. It could be said that usage of Noachian spans even beyond planet Earth. Astronomers studying the surface of the planet Mars use Noachian to refer to the epoch between 4.6 and 3.5 billion years ago when that planet's oldest craters were believed to be formed. This usage is based on Noachis Terra one of the landmasses of Mars. The name, which translates as "Land of Noah," was chosen in the 19th century by Italian astronomer Giovanni Schiaparelli.

Examples of Noachian in a Sentence

Noachian farm equipment that probably belongs in a museum somewhere.

First Known Use of Noachian

1678, in the meaning defined at sense 1

History and Etymology for Noachian

Hebrew Nōaḥ Noah

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Dictionary Entries near Noachian


no accident





Noah's ark

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Time Traveler for Noachian

The first known use of Noachian was in 1678

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What made you want to look up Noachian? Please tell us where you read or heard it (including the quote, if possible).


to move with a clumsy heavy tread

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