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Definition of Atomic number 20
1. Noun. A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.
Exact synonyms: Ca, Calcium
Generic synonyms: Metal, Metallic Element
Substance meronyms: Fluor, Fluorite, Fluorspar, Gypsum, Burnt Lime, Calcined Lime, Calcium Oxide, Calx, Fluxing Lime, Lime, Quicklime, Unslaked Lime, Limestone
Specialized synonyms: Calcium Ion, Factor Iv
Derivative terms: Calcify, Calcify, Calcify
Generic synonyms: Metal, Metallic Element
Substance meronyms: Fluor, Fluorite, Fluorspar, Gypsum, Burnt Lime, Calcined Lime, Calcium Oxide, Calx, Fluxing Lime, Lime, Quicklime, Unslaked Lime, Limestone
Specialized synonyms: Calcium Ion, Factor Iv
Derivative terms: Calcify, Calcify, Calcify
Lexicographical Neighbors of Atomic Number 20
Literary usage of Atomic number 20
Below you will find example usage of this term as found in modern and/or classical literature:
1. Evaluation of Speciation Technology: Workshop Proceedings, Tokai-mura by OECD Nuclear Energy Agency (2001)
"... the selected values for the first hydrolysis constants of actinide ions are
plotted as a function of the atomic number [20]. In spite of some scatters, ..."