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(noun) 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) |
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Synonyms: Astronomical Unit |
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Related Words: astronomy unit |
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| 2. |
(noun) a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia |
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Synonyms: atomic number 79, gold |
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Related Words: gold dust, green gold, guinea gold, noble metal |
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