Adjective
English Wikipedia has an article on:Semiparametric modelWikipedia
semiparametric (not comparable)
(mathematics) Having some, but not all, components that are parametric
A statistical model is semiparametric if it has both finite-dimensional and infinite-dimensional parameters. Source: Internet
Regarding semiparametric and nonparametric models, Sir David Cox has said, "These typically involve fewer assumptions of structure and distributional form but usually contain strong assumptions about independencies". Source: Internet