ASTROPHYSICS

astrophysics

(noun) the branch of astronomy concerned with the physical and chemical properties of celestial bodies

Source: WordNet® 3.1

Etymology

Noun

astrophysics (uncountable)

The branch of astronomy or physics that deals with the physical properties of celestial bodies and with the interaction between matter and radiation in celestial bodies and in the space between them.

Source: Wiktionary

As`tro*phys"ics, n. [Astro-+ physics.] (Astron.)

Definition: The science treating of the physical characteristics of the stars and other heavenly bodies, their chemical constitution, light, heat, atmospheres, etc.

Its observations are made with the spectroscope, bolometer, etc., usually in connection with the telescope.

Source: Webster’s Unabridged Dictionary 1913 Edition

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