Definition of metallicity in English:

metallicity

nounPlural metallicities mɛtəˈlɪsɪtiˌmedlˈisədē

mass noun

1The property of being metallic.
金属性，金属特征
1. 1.1Astronomy The proportion of the material of a star or other celestial object that is an element other than hydrogen or helium.
  〔天文〕（星球或其他天体）金属度
  count noun another study of these galaxies shows that they have very low metallicities
  Example sentencesExamples
  The Sun's value of x, solar metallicity and Earth's biological time scale were used to help define the GHZ.
  Third, by examining its metallicity, we have determined that the Sun is a third-generation star made from several supernova episodes that enriched the local interstellar gas some 5 billion years ago.
  However, independent information comes from extrasolar planet host metallicities, the supernova rate and the metallicity evolution of the Galaxy.
  The ratio of heavier elements to hydrogen and helium is known as metallicity.
  Scientists can look at stars all over the galaxy and determine the metallicity at the time they were formed.

Definition of metallicity in US English:

metallicity

nounˌmedlˈisədē

1The property of being metallic.
金属性，金属特征
1. 1.1Astronomy The proportion of the material of a star or other celestial object that is in elements other than hydrogen or helium.
  〔天文〕（星球或其他天体）金属度
  count noun another study of these galaxies shows that they have very low metallicities
  Example sentencesExamples
  Third, by examining its metallicity, we have determined that the Sun is a third-generation star made from several supernova episodes that enriched the local interstellar gas some 5 billion years ago.
  However, independent information comes from extrasolar planet host metallicities, the supernova rate and the metallicity evolution of the Galaxy.
  Scientists can look at stars all over the galaxy and determine the metallicity at the time they were formed.
  The Sun's value of x, solar metallicity and Earth's biological time scale were used to help define the GHZ.
  The ratio of heavier elements to hydrogen and helium is known as metallicity.

词汇	metallicity
释义	Definition of metallicity in English: metallicity nounPlural metallicities mɛtəˈlɪsɪtiˌmedlˈisədē mass noun 1The property of being metallic. 金属性，金属特征 1.1Astronomy The proportion of the material of a star or other celestial object that is an element other than hydrogen or helium. 〔天文〕（星球或其他天体）金属度 count noun another study of these galaxies shows that they have very low metallicities Example sentencesExamples The Sun's value of x, solar metallicity and Earth's biological time scale were used to help define the GHZ. Third, by examining its metallicity, we have determined that the Sun is a third-generation star made from several supernova episodes that enriched the local interstellar gas some 5 billion years ago. However, independent information comes from extrasolar planet host metallicities, the supernova rate and the metallicity evolution of the Galaxy. The ratio of heavier elements to hydrogen and helium is known as metallicity. Scientists can look at stars all over the galaxy and determine the metallicity at the time they were formed. Definition of metallicity in US English: metallicity nounˌmedlˈisədē 1The property of being metallic. 金属性，金属特征 1.1Astronomy The proportion of the material of a star or other celestial object that is in elements other than hydrogen or helium. 〔天文〕（星球或其他天体）金属度 count noun another study of these galaxies shows that they have very low metallicities Example sentencesExamples Third, by examining its metallicity, we have determined that the Sun is a third-generation star made from several supernova episodes that enriched the local interstellar gas some 5 billion years ago. However, independent information comes from extrasolar planet host metallicities, the supernova rate and the metallicity evolution of the Galaxy. Scientists can look at stars all over the galaxy and determine the metallicity at the time they were formed. The Sun's value of x, solar metallicity and Earth's biological time scale were used to help define the GHZ. The ratio of heavier elements to hydrogen and helium is known as metallicity.
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