Differentia vs. Genus — What's the Difference?

In scholastic logic, differentia is one of the predicables. It is that part of a definition which is predicable in a given genus only of the definiendum; or the corresponding "metaphysical part" of the object.

Genus (plural genera) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family.

An attribute that distinguishes one entity from another, especially an attribute that distinguishes one species from others of the same genus.

A principal taxonomic category that ranks above species and below family, and is denoted by a capitalized Latin name, e.g. Leo.

A distinguishing feature which marks a species off from other members of the same genus.

(Biology) A taxonomic category ranking below a family and above a species and designating a group of species that are presumed to be closely related and usually exhibit similar characteristics. In a scientific name, the genus name is capitalized and italicized, for example, Ovis for sheep and related animals.

The formal or distinguishing part of the essence of a species, by which it is distinguished from other members of its genus; the characteristic attribute of a species; specific difference; as, a proper definition must have both genus and differentia.

(Logic) A class of objects divided into subordinate species having certain common attributes.

The set of characteristics distinguishing an entity from related entities.

A class, group, or kind with common attributes.

Distinguishing characteristics (especially in different species of a genus)

A category in the classification of organisms, ranking below family (Lat. familia) and above species.

A taxon at this rank.

A group with common attributes.

A natural number representing any of several related measures of the complexity of a given manifold or graph.

(semantics) Within a definition, a broader category of the defined concept.

(music) A type of tuning or intonation, used within an Ancient Greek tetrachord.

A class of objects divided into several subordinate species; a class more extensive than a species; a precisely defined and exactly divided class; one of the five predicable conceptions, or sorts of terms.

An assemblage of species, having so many fundamental points of structure in common, that in the judgment of competent scientists, they may receive a common substantive name. A genus is not necessarily the lowest definable group of species, for it may often be divided into several subgenera. In proportion as its definition is exact, it is natural genus; if its definition can not be made clear, it is more or less an artificial genus.

A general kind of something;

(biology) taxonomic group containing one or more species