pseudoscience

noun

1. (countable, derogatory, uncountable)Any body of knowledge that purports to be scientific or to be supported by science (or may appear to be scientific) but which fails to comply with the scientific method (or rather, is not true science).

   “The fantastical pseudo-science of alchemy has in all ages had its numerous votaries …”

   “We had enough to do in this world. Life was a beautiful thing. The man who appreciated its real duties and beauties would have sufficient to employ him without dabbling in pseudo sciences which had their roots in frauds, exposed already a hundred times and yet finding fresh crowds of foolish devotees whose insane credulity and irrational prejudice made them impervious to all argument.”

2. (countable, uncountable)Fictitious science as portrayed in science fiction.

   “It pulls together first-rate pseudo-science and high-grade detective meller of the Spillane school (but entirely clean) and the result is fine read-and-forget entertainment.”