Definition of geognosy in English:

geognosy

noun

  • The description and classification of the rocks and rock formations (and, in later use, other inorganic substances) of which the earth consists; the branch of natural science (or later of geology) dealing with this. Now chiefly historical.

Origin

Late 18th century. From geo- + -gnosy, after German Geognosie. Compare French géognosie and earlier German Lithogeognosie and French lithogéognosie.

Pronunciation

geognosy

/dʒɪˈɒɡnəsi/