The difference between Differentia and Genus
When used as nouns, differentia means a distinguishing feature which marks a species off from other members of the same genus, whereas genus means a rank in the classification of organisms, below family and above species.
check bellow for the other definitions of Differentia and Genus
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Differentia as a noun (semantics, logic, taxonomy):
A distinguishing feature which marks a species off from other members of the same genus.
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Genus as a noun (taxonomy):
a rank in the classification of organisms, below family and above species; a taxon at that rank
Examples:
"All magnolias belong to the genus ''Magnolia''."
"Other species of the genus ''Bos'' are often called cattle or wild cattle."
"There are only two genera and species of seadragons''."
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Genus as a noun:
A group with common attributes.
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Genus as a noun (topology, graph theory, algebraic geometry):
A natural number representing any of several related measures of the complexity of a given manifold or graph.
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Genus as a noun (semantics):
Within a definition, a broader category of the defined concept.