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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

matter go
that which has mass and occupies space

substance go
the real physical matter of which a person or thing consists

material, stuff go
the tangible substance that goes into the makeup of a physical object

chemical, chemical substance go
material produced by or used in a reaction involving changes in atoms or molecules

compound, chemical compound go
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight

acid go
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

carboxylic acid go
an organic acid characterized by one or more carboxyl groups

fatty acid go
any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis

saturated fatty acid go
a fatty acid whose carbon chain cannot absorb any more hydrogen atoms

caproic acid, hexanoic acid
a fatty acid found in animal oils and fats or made synthetically

noun.substance

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