Definition of scientificism in US English:

scientificism

noun

  • 1Somewhat depreciative. Language that is regarded as characteristic of scientists or scientific writing; scientific jargon; an instance of this. rare.

  • 2Belief in or advocacy of science and the scientific method; specifically the theory or belief that all phenomena can be scientifically explained.

Origin

Mid 19th century; earliest use found in John Bull. From scientific + -ism.

Pronunciation

scientificism

/ˌsʌɪənˈtɪfɪsɪz(ə)m/