from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. containing six replaceable hydrogen atoms
  • adj. having six atoms of a univalent metal

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids.

from The Century Dictionary and Cyclopedia

  • Having a basicity of six; capable of combining with a proportion of base or metal equivalent to six atoms of hydrogen.


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