overdominance

overdominance definition - medical

o·ver·dom·i·nance (ōˌvər-dŏmˈə-nəns)

noun
The condition in which a heterozygote has a phenotype that is more pronounced or better adapted than that of either homozygote.

Related Forms:

  • oˌver·domˈi·nant adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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