Apedia

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Noun Plural Scientific Physical Astrophysics Singular Construction  International

Title Astrophysics
Text
Merriam-Webster's Collegiate Dictionary
as·tro·phys·ics
 \\ˌas-trə-ˈfi-ziks\\ 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
• as·tro·phys·i·cal  \\-zi-kəl\\ adjective
• as·tro·phys·i·cal·ly  \\-zi-k(ə-)lē\\ adverb
• as·tro·phys·i·cist  \\-ˈfi-zə-sist, -ˈfiz-sist\\ noun
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
astrophysics
astro·phys·ics / 7AstrEu5fiziks; NAmE 7Astrou- / noun[U]
   the scientific study of the physical and chemical structure of the stars, planets, etc.
   天体物理学
• astro·physi·cist / -5fizisist / noun
Webster's Third New International Dictionary, Unabridged
as·tro·physics
\“+\ noun plural but usually singular in construction
Etymology: International Scientific Vocabulary astr- + physics; originally formed as German astrophysik
: a branch of astronomy dealing principally with the physical and chemical natures of the heavenly bodies and their origin and evolution

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