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Synonyms

yolk

American  
[yohk, yohlk] / yoʊk, yoʊlk /

noun

  1. the yellow and principal substance of an egg, as distinguished from the white.

  2. Embryology. the part of the contents of the egg of an animal that enters directly into the formation of the embryo, together with any material that nourishes the embryo during its formation.

  3. the essential part; the inner core.

  4. a natural grease exuded from the skin of sheep.


yolk British  
/ jəʊk /

noun

  1. the substance in an animal ovum consisting of protein and fat that nourishes the developing embryo

  2. a greasy substance secreted by the skin of a sheep and present in the fleece

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

yolk Scientific  
/ yōk /
  1. The yellow internal part of the egg of a bird or reptile. The yolk is surrounded by the albumen and supplies food to the developing young.


Other Word Forms

Derived Forms

Etymology

Origin of yolk

before 1000; Middle English yolke, yelke, Old English geoloca, derivative of geolu yellow

Explanation

A yolk is the inner, yellow part of an egg. If you order eggs "sunny side up," those "suns" are the egg yolks. When a bird lays an egg that's fertilized and begins to grow into a baby bird, the yolk is the substance that nourishes the bird embryo. The eggs we eat have yolks too, but since they are unfertilized, these protein-rich yolks can be beaten into omelettes or mixed into cake batter. The Old English root of yolk, geolca, literally means "the yellow part."

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Vocabulary lists containing yolk

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Cardiff-based Yolk Recruitment said candidates were in a "position of control and power".

From BBC • Oct. 12, 2021

No, the former Silver Lake Yolk store will not become a drive-through Starbucks.

From Los Angeles Times • Jun. 13, 2019

The house is yet another collaboration for the plugged-in couple, who just opened At Yolk, a 10,000-square-foot arts space in Hyattsville’s warehouse district.

From Washington Post • Oct. 16, 2018

Other standouts include the sunny country blues-inspired tune “Broken Yolk in Western Sky,” and the John Lennon-ish singer-songwriter number, “Duncan, Where Have You Gone.”

From Time • Oct. 16, 2012

Then he said, “We just had brunch next door,” and he pointed to the Broken Yolk Café.

From "A Boy Called Bat" by Elana K. Arnold

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