Definition of metallicity in English:

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metallicity

Pronunciation: /mɛtəˈlɪsɪti/

noun (plural metallicities)

[mass noun]
1The property of being metallic.
1.1 Astronomy The proportion of the material of a star or other celestial object that is an element other than hydrogen or helium: [count noun]: another study of these galaxies shows that they have very low metallicities
More example sentences
  • 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.
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