Definition of quadrivalent in English:

quadrivalent

Syllabification: quad·ri·va·lent
Pronunciation: /ˌkwädrəˈvālənt
 
/

adjective

Chemistry
another term for tetravalent.
More example sentences
  • The complications arising from quadrivalent or trivalent plus univalent formation are not considered in this article.
  • The six spreads with the most well-separated chromosomes were evaluated and showed the same characteristic quadrivalent structure during meiosis.
  • The government of Saudi Arabia has now made quadrivalent meningococcal vaccination (ACWY Vac) a visa requirement for pilgrims.

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