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biological parent

see definition of biological parent
  • nounbirth mother or father
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Synonyms for biological parent

noun birth mother or father
  • biological father
  • biological mother
  • birth father
  • birth mother
  • birth parent
  • father
  • mother
  • natural parent
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.