Definition of pentavalent in English:

pentavalent

Syllabification: pen·ta·va·lent
Pronunciation: /ˌpentəˈvālənt
 
/

adjective

Chemistry
  • Having a valence of five.
    More example sentences
    • The other inorganic pentavalent salt tested (sodium hexafluoroarsenate) was not genotoxic in either of the two studies carried out.
    • Table 4 includes the recommended dosage of pentavalent antimony and other treatment options.
    • Because pentavalent antimony is difficult to use, consultation with an infectious disease specialist and the CDC is recommended before using it.

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Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
noun
a powerful whirlpool in the sea

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