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The Collaborative International Dictionary of English v.0.48 (gcide)

Physiography \Phys`i*og"ra*phy\ (f[i^]z`[i^]*[o^]g"r[.a]*f[y^]),
n. [Gr. fy`sis nature -graphy: cf. F. physiographie.]
1. The science which treats of the earth's exterior physical
features, climate, life, etc., and of the physical
movements or changes on the earth's surface, as the
currents of the atmosphere and ocean, the secular
variations in heat, moisture, magnetism, etc.; physical
geography.
[1913 Webster]

2. The descriptive part of a natural science as distinguished
from the explanatory or theoretic part; as, mineral
physiography.
[Webster 1913 Suppl.]