pentavalent [pen-tuh-vey-luh nt, pen-tav-uh-] ExamplesWord Origin adjective Chemistry.

  1. having a valence of 5: pentavalent arsenic.
  2. quinquevalent(def 2).

Origin of pentavalent First recorded in 1870–75; penta- + -valent Examples from the Web for pentavalent Historical Examples of pentavalent

  • Similarly, we have trivalent, tetravalent, pentavalent elements.

    An Elementary Study of Chemistry

    William McPherson

  • British Dictionary definitions for pentavalent pentavalent adjective

    1. chem having a valency of fiveAlso: quinquevalent

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