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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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chemical, chemical substance go
material produced by or used in a reaction involving changes in atoms or molecules
material produced by or used in a reaction involving changes in atoms or molecules
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compound, chemical compound go
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
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salt go
a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
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fluoride
a salt of hydrofluoric acid
a salt of hydrofluoric acid
noun.substance
4 Subcategories
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boron trifluoride go
a pungent colorless gas
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hydrogen fluoride go
a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride
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stannous fluoride go
a white powder that is used to fluoridate toothpaste
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sulfur hexafluoride, sulphur hexafluoride go
a colorless gas that is soluble in alcohol and ether