noun plural but singular or plural in construction Etymology: International Scientific Vocabulary Date: 1890 a branch of astronomy dealing especially with the behavior, physical properties, and dynamic processes of celestial objects and phenomena, astrophysical adjective astrophysically adverb astrophysicist noun
ASTROPHYSICS
Meaning of ASTROPHYSICS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012