Bible Dictionaries
Tertium Quid

Webster's Dictionary

A third somewhat; something mediating, or regarded as being, between two diverse or incompatible substances, natures, or positions.

Bibliography Information
Webster, Noah. Entry for 'Tertium Quid'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/tertium-quid.html. 1828.