metallicity
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a word derived from
metallic.
metallicadjectiveof, relating to, or consisting of metal.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Astronomers use metallicity to describe the amount of elements heavier than hydrogen and helium present in a star or galaxy.
From Science Daily ● Sep. 24, 2026
The stars in NGC 6426 have what astronomers call low metallicity, meaning they contain relatively small amounts of elements heavier than hydrogen and helium.
From Science Daily ● Jul. 5, 2026
A star's "metallicity" refers to how much of these heavier elements it contains.
From Science Daily ● Apr. 4, 2026
Results of the study showed that observations of both this supernova and the galaxy it was discovered in are of low metallicity, meaning they lack an abundance of elements heavier than hydrogen or helium.
From Science Daily ● Nov. 25, 2024
"We argue that at low metallicity -- galaxy environments that are relatively unpolluted -- there is a 10-million-year delay in the start of strong superwinds, which, in turn, results in higher star formation."
From Science Daily ● Nov. 21, 2023