self-fertilization
Americannoun
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Botany. fertilization of an ovum of a plant by a male gamete from the same flower (opposed to cross-fertilization).
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Zoology. fertilization of the ovum of a hermaphroditic animal by a sperm from the same individual, as in some species of tapeworm.
noun
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Fertilization that occurs when male and female gametes produced by the same organism unite. Self-fertilization occurs in many protozoans and invertebrate animals. It results from self-pollination in plants. Self-fertilization allows an isolated individual organism to reproduce but restricts the genetic diversity of a community.
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Compare cross-fertilization
Other Word Forms
Etymology
Origin of self-fertilization
First recorded in 1855–60
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.
Among a handful of species exist hermaphrodites capable of self-fertilization.
From Science Daily ● Mar. 14, 2024
Before the plants have matured, you remove the pollen-producing organs from the tall/inflated plants in your crosses to prevent self-fertilization.
From Textbooks ● Jun. 9, 2022
Although self-fertilization forms seeds by meiosis, all of the resulting plants will be identical.
From Textbooks ● Jun. 9, 2022
Modern maize breeders have systematically reduced the effects of this constant mutational pressure through artificial selection and self-fertilization, which have exposed rare recessive variants in elite inbred lines5.
From Nature ● Mar. 13, 2018
These have their organs so arranged as to make self-fertilization impossible.
From Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors by Blanchan, Neltje
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.