yolk UK /jəʊk/US /joʊk/noun 2verb 1forms 3 noun2 •The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young.To make meringue, you have to separate the white from the yolk. •The grease in a sheep's fleece; lanolin. verb1 •To produce yolk.This is surprising in that these females were yolking up their clutch of eggs — 1981 formsyolked · yolking · yolks
