Genera is the plural form of a taxonomic category called genus.
A genus is composed of a group of closely related species that share some common characteristics. For example, tigers and lions come under the same genus ‘Panthera’.
Family is the taxonomic category that is placed above the scientific classification level, genus.
A family is composed of a group of related genera.
Lion, tiger, and cat are included in the same family, Felidae.
Final answer: A group of related genera is called family.