What does "incompatible" mean?

Incompatible: (Chem.) Incapable of being together without mutual reaction or decomposition, as certain medicines. Incompatible terms (Logic), terms which can not be combined in thought. See Inconsistent.

Additional senses

  1. 2.An incompatible substance; esp., in pl., things which can not be placed or used together because of a change of chemical composition or of opposing medicinal qualities; as, the incompatibles of iron.

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