pseudo-science       
noun [ C or U ] mainly UK uk/ˈsjuː.dəʊ.saɪ.əns/ us/ˈsuː.doʊ.saɪ.əns/ (also mainly US pseudoscience)
 伪科学
a system of thought or a theory that is not formed in a scientific way
  No lie was too big to tell, no bit of pseudo-science too ridiculous to pass off as legitimate.
 It has been dismissed as pseudoscience - sometimes downright dangerous.
 When pseudo-sciences are published, they are often published in journals that have "peer review" but are less rigorous than one would expect of the scientific mainstream.
 - More examples
 - In the absence of science he could see all sorts of myth and pseudo-science taking hold.
 - Pseudo-science has a nasty habit of reaching into every walk of life and infecting every debate.
 - Sometimes specific concepts and claims within a pseudoscience can be falsified, the efficacy of alternative medicines for example.