Any individual from which a person or animal is descended.

c. 1300, ancestre, antecessour, from Old French ancestre (12c., Modern French ancêtre), from Late Latin antecessor "predecessor," literally "foregoer," agent noun from past partici [..]

organism from whom one is descended.

Any organism, population, or species from which some other organism, population, or species is descended by reproduction.

someone from whom you are descended (but usually more remote than a grandparent) An ancestor is a parent or (recursively) the parent of an ancestor (i.e., a grandparent, great-grandparent, great-great [..]

An ancestor is someone from whom you descend. For example, your grandparents are your ancestors.

An ancestor is an organism or sequence from which another is descended

An individual from whom one is descended.

ov (oves)

1 a : a person from whom an individual is descended : ascendant b : a person from whom an estate descends compare heir 2 : one that precedes [ in title]

An entity from which another entity is descended.

a person who is descended (grandmother, grand-grand-father, etc.).

Ancestor refers to a predecessor in the family line. Any one from whom an estate is derived by act of law and right of blood is in a legal sense an ancestor.

(n) someone from whom you are descended (but usually more remote than a grandparent)

in this context, an organism, or more correctly a population, lineage, or species, that through evolution gives rise to one or more descendants that generally belong to a distinct taxon or species to itself. The identification of ancestors and descendants is a central aspect of evolutionary systematics. In contrast, cladistics denies it is ever pos [..]

1. One from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a fore father. 2. <biology> An earlier type; a progenitor; as, this fossil animal is regarded as the ancestor of the horse. 3. One from whom an estate has descended; the correlative of heir. Origin: OE. Ancestre, [..]

This term refers to terms in a hierarchical controlled vocabulary such as those containing Gene Ontology (GO), Mammalian Phenotype Ontology, and Adult Mouse Anatomical Dictionary terms. An "ancestor" of a term is a term any number of levels above it in the hierarchy from which it is descended. For example, the GO term enzyme [GO:0003824] [..]

A related, earlier form of present animals.