Zoology: General

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yolk

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

yolk / yōk/ • n. the 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. ∎ Zool. the corresponding part in the ovum or larva of all egg-laying vertebrates and many invertebrates. ORIGIN: Old English geol(o)ca, from geolu ‘yellow.’

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"yolk." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

"yolk." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O999-yolk.html

"yolk." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-yolk.html

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yolk

A Dictionary of Biology | 2004 | Copyright

yolk The food stored in an egg for the use of the embryo. It can consist mainly of protein (protein yolk) or of phospholipids and fats (fatty yolk). The eggs of oviparous animals (e.g. birds) contain a relatively large yolk.

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"yolk." A Dictionary of Biology. 2004. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O6-yolk.html

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yolk

World Encyclopedia | 2005 | Copyright

yolk Rich substance found in the eggs or ova of most animals except those of placental mammals. It consists of fats and proteins and serves as a store of food for the developing embryo.

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"yolk." World Encyclopedia. 2005. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O142-yolk.html

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yolk

A Dictionary of Zoology | 1999 | | Copyright

yolk Material, consisting of a mixture of lipids and proteins, secreted in the form of granules, that in eggs act as a source of food for the growth and development of an embryo.

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MICHAEL ALLABY. "yolk." A Dictionary of Zoology. 1999. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "yolk." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O8-yolk.html

MICHAEL ALLABY. "yolk." A Dictionary of Zoology. 1999. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-yolk.html

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yolk

The Concise Oxford Dictionary of English Etymology | 1996 | | Copyright

yolk2 greasy substance of sheep's skin glands. XVII. repr. OE. *eowoca, in the adj. eowociġ; see -Y1.

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T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O27-yolk1.html

T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-yolk1.html

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yolk

The Concise Oxford Dictionary of English Etymology | 1996 | | Copyright

yolk1 yellow of an egg. OE. ġeol(o)ca, f. ġeolu YELLOW.

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T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O27-yolk.html

T. F. HOAD. "yolk." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-yolk.html

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yolk

Oxford Dictionary of Rhymes | 2007 | Copyright

yolk •awoke, bespoke, bloke, broke, choke, cloak, Coke, convoke, croak, evoke, folk, invoke, joke, Koch, moke, oak, okey-doke, poke, provoke, revoke, roque, smoke, soak, soke, spoke, stoke, stony-broke (US stone-broke), stroke, toke, toque, woke, yoke, yolk •Holyoake • artichoke • gentlefolk •menfolk • kinsfolk • womenfolk •townsfolk • fisherfolk • holmoak •woodsmoke • cowpoke • slowpoke •backstroke • breaststroke • keystroke •heatstroke • sidestroke • downstroke •sunstroke • upstroke • masterstroke •counterstroke • equivoque

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Free newspaper and magazine articles

	Supercritical extraction from egg yolk yields low-fat, low-cholesterol powder Newspaper article from: Emerging Food R&D Report; 7/1/1995
	Reduce cholesterol levels in egg yolk with polysorbate Newspaper article from: Emerging Food R&D Report; 1/1/1996
	Yolk hormone levels in the synchronously developing eggs of Paroedura picta,... Magazine article from: Canadian Journal of Zoology; 11/1/2006