Learn how to say Irreducible correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word irreducible:
not able to be reduced or lessened
not able to be brought to a simpler or reduced form
(of a polynomial) unable to be factorized into polynomials of lower degree, as (x² + 1)
(of a radical) incapable of being reduced to a rational expression, as √(x + 1)
ˌirreˌduciˈbility, ˌirreˈducibleness noun