c/Astrophysics theories

Information
lexicalization	eng: Astrophysics theories
subclass of	(noun) a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory" theory
has instance	e/Papaloizou–Pringle instability
has instance	e/Partial impact theory

Meaning
Arabic
lexicalization	ara: نظريات الفيزياء الفلكية