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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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paraffin, methane series, alkane series, alkane, paraffin series go
a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)
a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)
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amine, aminoalkane go
a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals
a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals
ptomaine, ptomain
any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
noun.substance
2 Subcategories