Definition of metallicity in English:

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Pronunciation: /ˌmedlˈisədē/

noun (plural metallicities)

1The property of being metallic.
1.1 Astronomy The proportion of the material of a star or other celestial object that is in elements other than hydrogen or helium.
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.

For editors and proofreaders

Syllabification: met·al·lic·i·ty

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