Ancestor Meaning

ANCESTOR, descents. One who has preceded another in a direct line ofdescent; an ascendant.

Definition of ancestor in the Definitions.net dictionary. Meaning of ancestor. What does ancestor mean? Information and translations of ancestor in the most comprehensive dictionary definitions resource on the web.

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For example, say that you lift a 40-kilogram cannonball onto a shelf 3.0 meters from the floor, and the ball rolls and slips off, headed toward your toes.

In the common law, the word is understood as well ofthe immediate parents, as, of these that are higher; as may appear by thestatute 25 Ed. De natis ultra mare, and so in the statute of 6 R. 6, and by many others. But the civilians relations in the ascendingline, up to the great grandfather's parents, and those above them, theyterm, majores, which common lawyers aptly expound antecessors or ancestors,for in the descendants of like degree they are called posteriores. The term ancestor is applied to natural persons. The wordspredecessors and successors, are used in respect to the persons composing abody corporate. 58.Want to thank TFD for its existence?, add a link to this page, or visit.Link to this page.

Freebase (0.00 / 0 votes) Rate this definition:.Most recent common ancestorIn genetics, the most recent common ancestor of any set of organisms is the most recent individual from which all organisms in the group are directly descended. The term is often applied to human genealogy.The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree. However, in general, it is impossible to identify the specific MRCA of a large set of individuals, but an estimate of the time at which the MRCA lived can often be given. Such time to MRCA estimates can be given based on DNA test results and established mutation rates as practiced in genetic genealogy, or by reference to a non-genetic, mathematical model or computer simulation.

Assuming that no genetically isolated human populations remain, the human MRCA may have lived 2,000 to 4,000 years ago. Genetically isolated populations would imply an MRCA living in the Paleolithic.The term MRCA is usually used to describe a common ancestor of individuals within a species. It can also be used to describe a common ancestor between species.

To avoid confusion, last common ancestor or the equivalent term concestor is sometimes used in place of MRCA when discussing ancestry between species.