dioch UK /ˈdaɪ.ək/US /ˈdaɪ.ɑk/ noun1 •An African weaverbird of the genus Quelea.From the trees comes the doleful cry of the black-faced dioch, and the weary rustle of galagos creeping back to their nests after a meticulous night's prowl. — 1982 formsdiochs