adjective lin·e·al \ˈli-nē-əl\

: having a direct family relationship : related by a direct series of parents and children

Full Definition of LINEAL

:  linear
:  composed of or arranged in lines
a :  consisting of or being in a direct male or female line of ancestry — compare collateral 2
b :  relating to or derived from ancestors :  hereditary
c :  descended in a direct line
a :  belonging to one lineage <lineal relatives>
b :  of, relating to, or dealing with a lineage
lin·e·al·i·ty \ˌli-nē-ˈa-lə-tē\ noun
lin·e·al·ly \ˈli-nē-ə-lē\ adverb

Examples of LINEAL

  1. He claims that he is a lineal descendent of a famous military hero.

First Known Use of LINEAL

14th century

Other Genetics Terms

chimera, hermaphrodite, plasticity


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