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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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element, chemical element go
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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metal, metallic element go
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
calcium, Ca, atomic number 20
a white metallic element that burns with a brilliant light
a white metallic element that burns with a brilliant light
noun.substance
1 Subcategories
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calcium ion, factor IV go
ion of calcium