1. a category of biological classification that groups closely related species together, ranking below family and above species
Usage: biology; taxonomy
2. a class or group of things having common characteristics
Usage: formal

Examples

• The genus Homo includes modern humans and their extinct relatives.
• Lions and tigers belong to the genus Panthera.
• Scientists discovered a new genus of flowering plants in the rainforest.
• The genus Rosa contains all species of roses.
• This genus of bacteria is particularly resistant to antibiotics.
• Each genus is divided into one or more species.
• The museum displayed fossils from an extinct genus of marine reptiles.