[ ō′vər-dŏm′ə-nəns ]
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The condition in which a heterozygote has a phenotype that is more pronounced or better adapted than that of either homozygote.
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Other words from overdominanceo′ver•dom′i•nant adj.
Words nearby overdominance
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
How to use overdominance in a sentence
According to statistical studies, overdominance by parents decreases the chance of successful marriage.