ASTRONOMICAL UNIT

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)

Synonyms:

Astronomical Unit; AU

Classified under:

Nouns denoting quantities and units of measure

Hypernyms ("Astronomical Unit" is a kind of...):

astronomy unit (a linear unit used for astronomical distances)

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