Definition of genealogy

genealogy noun

ge·​ne·​al·​o·​gy | \ ˌjē-nē-ˈä-lə-jē  also -ˈa-lə-  also ˌje-nē- \

plural genealogies

Definition of genealogy

1 : an account of the descent of a person, family, or group from an ancestor or from older forms
2 : regular descent of a person, family, or group of organisms from a progenitor (see PROGENITOR sense 1) or older form : PEDIGREE
3 : the study of family ancestral lines
4 : an account of the origin and historical development of something