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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

mixture go
(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)

lamellar mixture go
a mixture in which substances occur in distinct layers

pearlite
a lamellar mixture of cementite and ferrite formed during the cooling of austenite

noun.substance

1 Subcategories

granular pearlite, globular pearlite go
if steel or iron cool very slowly the cementite may occur in globules instead of in layers