compounder /kəmˈpaʊndə(ɹ)/ noun5 •A person who compounds (mixes ingredients, and tests the result)a compounder of medicines •One who compounds a debt, obligation, or crime.Religious houses made compounders / For the horrid actions of their founders. — 1662 •One who attempts to bring persons or parties to terms of agreement, or to accomplish ends by compromises.Compounders in politics. — 1790 •(UK, historical) A Jacobite who favoured the restoration of James II, on condition of a general amnesty and of guarantees for the security of the civil and ecclesiastical constitution of the realm. •(UK, no longer used) One at a university who pays extraordinary fees for the degree he is to take.The first of these two was a compounder, the other who was an accumulator, was lately made provost of Trin. coll. near Dublin, and on the 31st of March 1692 was nominated bish. of Kilmore. — 1691 formscompounders