English to English

noun (n)

• (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids(noun.act)

  Synonym:
  cross, crossbreeding, crossing, hybridisation, hybridizing, interbreeding
  

  source: wordnet30
• The act of hybridizing, or the state of being hybridized.(noun)

  source: webster1913