Ĭ'de-ōl'o-gy, n.

n. [Fr. idéologie, from Gr. idéa, idea, and λόγος, discourse.]

1. The science of ideas. Stewart.
2. (Metaph.) A view of the formation 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.