astrophysics has definitions from the fields of physics,astronomy
[ noun ] (physics,astronomy) the branch of astronomy concerned with the physical and chemical properties of celestial bodies

Used in print

(1961 Research Highlights of the National Bureau of...)

In_addition to the basic programs in wavelength standards , spectroscopy , solid_state physics , interactions of the free electron and atomic constants which are necessary to provide the foundation for technological progress , the Bureau has strengthened its activities in laboratory astrophysics .

Related terms

astronomy cosmology