What does "ternary" mean?

Ternary: (Chem.) Containing, or consisting of, three different parts, as elements, atoms, groups, or radicals, which are regarded as having different functions or relations in the molecule; thus, sodic hydroxide, NaOH, is a ternary compound.

Additional senses

  1. 2.A ternion; the number three; three things taken together; a triad. Some in ternaries, some in pairs, and some single. Holder.

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