In biology and zoology it is the name of a genus of carnivores, known as felines or cats. It is a Latin word meaning feline, cat. It was formerly the name of a constellation that was ultimately not accepted. Name of a star in the constellation Hydra. Previously in Biology Felis was a genus that also included big cats, such as Felis onca, to differentiate nowadays, the genus name Panthera is used, to designate large felines: Felis onca is the jaguar.
