n. the scientific study of the Moon's geographic features; geography of the Moon
the GNU version of the Collaborative International Dictionary of English
n. The science that treats of the physical features of the moon; -- corresponding to physical geography in respect to the earth.
The Century Dictionary and Cyclopedia
n. The scientific study of the moon: chiefly used with reference to study of the moon's physical condition, and especially the form and disposition of the elevations and depressions by which its surface is characterized.
Word Usage
"With this the inequalities of light and shade in the moon are more distinctly seen and placed, so that a sort of selenography can be made."