Definition of yolk in English:



  • 1The yellow internal part of a bird's egg, which is surrounded by the white, is rich in protein and fat, and nourishes the developing embryo.

    • ‘The preserved eggs, with their green-and-yellow yolks and amber whites, cut into segments and arranged around a pile of chopped green peppers like the petals of a flower.’
    • ‘Use hands to slowly incorporate yolks into potato and flour mixture.’
    • ‘Leftover raw egg whites and yolks should be put in airtight containers and refrigerated immediately, then used within a day or two.’
    • ‘Mix egg yolk and lemon juice, add to flour mixture, and mix to a stiff dough’
    • ‘The yolks were homogenized with 1 ml water per gram of yolk.’
    • ‘Fold the egg whites into the egg yolk and sugar mixture.’
    • ‘Whole egg protein contains yolks and whites, providing a high ratio of indispensable amino acids.’
    • ‘These new noodles substitute soy flour for semolina flour and may contain egg whites or yolks to boost protein.’
    • ‘You may be used to eating the whites and discarding the yolks, but skip that step during pregnancy because the yolks provide extra calories, Vitamin D and folic acid.’
    • ‘Cool and peel eggs, reserving yolks and discarding whites.’
    • ‘The eggs were then cracked open, and the yolks and whites of the egg samples from the same batch were pooled and homogenized with an electric mixer.’
    • ‘In bowl, whisk together sugar and yolks until light yellow and foamy.’
    • ‘Put the rind, juice, yolks and sugar in a small basin and place over a pan of boiling water.’
    • ‘Separate egg whites and yolks into separate bowls.’
    • ‘Mix the egg yolk, milk, sugar and potato flour together in a small saucepan.’
    • ‘Gently drizzle vinegar over yolks and sprinkle sugar and salt on top.’
    • ‘To make the custard, separate the eggs and whisk the vanilla sugar into the yolks (save the whites for meringues).’
    • ‘Fresh eggs from free-range chickens will produce a stronger binder because of the rich, viscous yolks.’
    • ‘Gradually pour half of hot milk mixture over yolks while whisking constantly.’
    • ‘When the whites congeal, just spoon some water over the yellow yolks and the albumen will turn white, and you have your runny eggs.’
    1. 1.1Zoology The corresponding part in the ovum or larva of all egg-laying vertebrates and many invertebrates.
      • ‘Fleischer used gel electrophoresis to discriminate yolk allozymes sampled from eggs laid by several female cowbirds.’
      • ‘In contrast to the fluid yolk of atherinomorphs, yolk is organized into globules in other taxa.’
      • ‘An estimate of the daily amount of yolk deposited on developing ova and the sequence of laying are important when evaluating the total cost of egg production.’
      • ‘In this study, we investigated differences in maternally deposited yolk testosterone and DHT in relation to diet quality.’
      • ‘For example, yolk was present in male blood plasma, which is highly abnormal.’


Old English geol(o)ca, from geolu ‘yellow’.