heredity
Americannoun
plural
heredities-
the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new individual similar to others of its kind but exhibiting certain variations resulting from the particular mix of genes and their interactions with the environment.
-
the genetic characters so transmitted.
noun
-
the transmission from one generation to another of genetic factors that determine individual characteristics: responsible for the resemblances between parents and offspring
-
the sum total of the inherited factors or their characteristics in an organism
Etymology
Origin of heredity
First recorded in 1530–40; from Middle French heredite, from Latin hērēditāt-, stem of hērēditās “inheritance,” from hērēd- (stem of hērēs ) heir + -itās -ity
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In Galton’s day, the impact of heredity on who we are as people had become recognized, then greatly exaggerated—a trend that continued through the next century and remains alive and well today.
From Slate • Mar. 19, 2026
Everyone suspected it was central to heredity but no one knew exactly how.
From The Wall Street Journal • Jan. 4, 2026
"Health effects of air pollution are synergistic manifestation of factors which include food habits, occupational habits, socio-economic status, medical history, immunity, heredity, etc," it said.
From Barron's • Dec. 3, 2025
From the description of skin as “blue black” to the blues as a musical genre, the color blue and its many shades intertwine with African American heredity, history and heritage.
From Los Angeles Times • Dec. 28, 2024
To this reader, at least, it can hardly be argued that Mendel was unaware of the far-reaching implications of his study: he was trying to unlock the material basis and laws of heredity.
From "The Gene" by Siddhartha Mukherjee
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.