hə̇ˈredəd.ē, -ətē, -i also heˈ- noun
( -es )
Etymology: Middle French heredité, from Latin hereditat-, hereditas, from hered-, heres heir + -itat-, -itas -ity — more at heir
1.
a. : inheritance
their fathers were of yeoman rank, both by heredity and as large freeholders — Charles Partridge
b. : tradition
Bretons are fishermen by heredity
2.
a. : the sum of the qualities and potentialities of an individual that are genetically derived from its ancestors : the germinal constitution of an individual
b. : the transmission of qualities from ancestor to descendant (as from parent to child) through a mechanism lying primarily in the chromosomes of the germ cells that in sexually reproducing organisms sorts out in meiosis the genes accumulated in past generations and recombines them during fertilization to produce a new individual conforming to the general pattern of its kind but exhibiting variations dependent both on specific recombination of factors and on interaction between the hereditary potentialities and the environment — compare galton's law of inheritance , lamarckism , mendel's law , pangenesis , phenocopy , weismannism