▸ noun: the branch of astronomy concerned with the physical and chemical properties of celestial bodies
▸ noun: the scientific study of the physical and chemical structure of the stars, planets, and other objects in the universe

See Also

A Sketch of a Philosophy - Book II (external link)
A Sketch of a Philosophy, Supplement (external link)
Keelys Physical Philosophy
Natural Philosophy
On the Nature of Things (external link)
SVP Cosmology

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