| genus | |
| 1. n. (taxonomy) a rank in the classification of organisms, below family and above species; a taxon at that rank | |
| 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. | |
| 2. n. A group with common attributes. | |
| 3. n. (topology, graph theory, algebraic geometry) A natural number representing any of several related measures of the complexity of a given manifold or graph. | |
| 4. n. (semantics) Within a definition, a broader category of the defined concept. | |
