Definition of family trees:
(n) :
(genealogy) A diagrammatic representation of a pedigree, illustrating the connections between a person's ancestors, offspring and other relatives.
(n) :
(collective) The totality of someone's ancestors and offspring.
(n) :
(linguistics) A model or diagram showing the relationships and evolution of specified languages over time.
(n) :
(computing, computing theory) A data structure that organizes resources or machines in a distributed system, consisting of nodes connected by edges, in which each node may also contain a subnode.
(n) :
(horticulture) A grafting technique involving the joining of different varieties of plants onto a single tree or plant.