I′de‐ol″o‐gy (?), n. [Ideo- + -logy: cf. F. idéologie.] 1. The science of ideas. Stewart.
2. (Metaph.) A theory of the origin of ideas which derives them exclusively from sensation.
☞ By a double blunder in philosophy and Greek, idéologie... has in France become the name peculiarly distinctive of that philosophy of mind which exclusively derives our knowledge from sensation. Sir W. Hamilton.