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13 results for: Yolk
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yolk 
Audio Help [yohk, yohlk] Pronunciation Key
Audio Help [yohk, yohlk] Pronunciation Key –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. |
| Dictionary.com Unabridged (v 1.1) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. |
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Yolk
To learn more about Yolk visit Britannica.com
| © 2008 Encyclopædia Britannica, Inc. |
| yolk
Audio Help (yōk) Pronunciation Key
n.
[Middle English yolke, from Old English geolca, from geolu, yellow; see yellow.] yolk'y adj. |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
yolk
O.E. geolca, geoloca "yolk," lit. "the yellow part," from geolu "yellow" (see yellow). Formerly also spelled yelk.
| Online Etymology Dictionary, © 2001 Douglas Harper |
| yolk | |
noun | |
| 1. | the yellow spherical part of an egg that is surrounded by the albumen [syn: egg yolk] |
| 2. | nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg) |
| WordNet® 3.0, © 2006 by Princeton University. |
yolk [jouk] noun
(also ˈegg-yolk) the yellow part of an egg
Example: The child will only eat the yolk of an egg — she won't eat the white.
Example: The child will only eat the yolk of an egg — she won't eat the white.
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| Kernerman English Multilingual Dictionary (Beta Version), © 2000-2006 K Dictionaries Ltd. |
| yolk
Audio Help (yōk) Pronunciation Key
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. |
| The American Heritage® Science Dictionary Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
k)- The portion of the egg of an animal that consists of protein and fat from which the early embryo gets its main nourishment and of protoplasmic substances from which the embryo develops.
| The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
Main Entry: yolk
Pronunciation: 'yOk
Function: noun
: material stored in an ovum that supplies food to the developing embryo and consists chiefly of
proteins, lecithin, and cholesterol
| Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc. |
Yolk
Food\, n. [OE. fode, AS. f[=o]da; akin to Icel. f[ae][eth]a, f[ae][eth]i, Sw. f["o]da, Dan. & LG. f["o]de, OHG. fatunga, Gr. patei^sthai to eat, and perh. to Skr. p[=a] to protect, L. pascere to feed, pasture, pabulum food, E. pasture. [root]75. Cf. Feed, Fodder food, Foster to cherish.]1. What is fed upon; that which goes to support life by being received within, and assimilated by, the organism of an animal or a plant; nutriment; aliment; especially, what is eaten by animals for nourishment. Note: In a physiological sense, true aliment is to be distinguished as that portion of the food which is capable of being digested and absorbed into the blood, thus furnishing nourishment, in distinction from the indigestible matter which passes out through the alimentary canal as f[ae]ces. Note: Foods are divided into two main groups: nitrogenous, or proteid, foods, i.e., those which contain nitrogen, and nonnitrogenous, i.e., those which do not contain nitrogen. The latter group embraces the fats and carbohydrates, which collectively are sometimes termed heat producers or respiratory foods, since by oxidation in the body they especially subserve the production of heat. The proteids, on the other hand, are known as plastic foods or tissue formers, since no tissue can be formed without them. These latter terms, however, are misleading, since proteid foods may also give rise to heat both directly and indirectly, and the fats and carbohydrates are useful in other ways than in producing heat. 2. Anything that instructs the intellect, excites the feelings, or molds habits of character; that which nourishes. This may prove food to my displeasure. --Shak. In this moment there is life and food For future years. --Wordsworth. Note: Food is often used adjectively or in self-explaining compounds, as in food fish or food-fish, food supply. Food vacuole (Zo["o]l.), one of the spaces in the interior of a protozoan in which food is contained, during digestion. Food yolk. (Biol.) See under Yolk. Syn: Aliment; sustenance; nutriment; feed; fare; victuals; provisions; meat.| Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc. |
Yolk
Yelk\, n. Same as Yolk.| Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc. |
Yolk
Yel"low\, a. [Compar. Yellower; superl. Yellowest.] [OE. yelow, yelwe, [yogh]elow, [yogh]eoluw, from AS. geolu; akin to D. geel, OS. & OHG. gelo, G. gelb, Icel. gulr, Sw. gul, Dan. guul, L. helvus light bay, Gr. ? young verdure, ? greenish yellow, Skr. hari tawny, yellowish. ???. Cf. Chlorine, Gall a bitter liquid, Gold, Yolk.] Being of a bright saffronlike color; of the color of gold or brass; having the hue of that part of the rainbow, or of the solar spectrum, which is between the orange and the green. Her yellow hair was browded [braided] in a tress. --Chaucer. A sweaty reaper from his tillage brought First fruits, the green ear and the yellow sheaf. --Milton. The line of yellow light dies fast away. --Keble. Yellow atrophy (Med.), a fatal affection of the liver, in which it undergoes fatty degeneration, and becomes rapidly smaller and of a deep yellow tinge. The marked symptoms are black vomit, delirium, convulsions, coma, and jaundice. Yellow bark, calisaya bark. Yellow bass (Zo["o]l.), a North American fresh-water bass (Morone interrupta) native of the lower parts of the Mississippi and its tributaries. It is yellow, with several more or less broken black stripes or bars. Called also barfish. Yellow berry. (Bot.) Same as Persian berry, under Persian. Yellow boy, a gold coin, as a guinea. [Slang] --Arbuthnot. Yellow brier. (Bot.) See under Brier. Yellow bugle (Bot.), a European labiate plant (Ajuga Cham[ae]pitys). Yellow bunting (Zo["o]l.), the European yellow-hammer. Yellow cat (Zo["o]l.), a yellow catfish; especially, the bashaw. Yellow copperas (Min.), a hydrous sulphate of iron; -- called also copiapite. Yellow copper ore, a sulphide of copper and iron; copper pyrites. See Chalcopyrite. Yellow cress (Bot.), a yellow-flowered, cruciferous plant (Barbarea pr[ae]cox), sometimes grown as a salad plant. Yellow dock. (Bot.) See the Note under Dock. Yellow earth, a yellowish clay, colored by iron, sometimes used as a yellow pigment. Yellow fever (Med.), a malignant, contagious, febrile disease of warm climates, attended with jaundice, producing a yellow color of the skin, and with the black vomit. See Black vomit, in the Vocabulary. Yellow flag, the quarantine flag. See under Quarantine, and 3d Flag. Yellow jack. (a) The yellow fever. See under 2d Jack. (b) The quarantine flag. See under Quarantine. Yellow jacket (Zo["o]l.), any one of several species of American social wasps of the genus Vespa, in which the color of the body is partly bright yellow. These wasps are noted for their irritability, and for their painful stings. Yellow lead ore (Min.), wulfenite. Yellow lemur (Zo["o]l.), the kinkajou. Yellow macauco (Zo["o]l.), the kinkajou. Yellow mackerel (Zo["o]l.), the jurel. Yellow metal. Same as Muntz metal, under Metal. Yellow ocher (Min.), an impure, earthy variety of brown iron ore, which is used as a pigment. Yellow oxeye (Bot.), a yellow-flowered plant (Chrysanthemum segetum) closely related to the oxeye daisy. Yellow perch (Zo["o]l.), the common American perch. See Perch. Yellow pike (Zo["o]l.), the wall-eye. Yellow pine (Bot.), any of several kinds of pine; also, their yellowish and generally durable timber. Among the most common are valuable species are Pinus mitis and P. palustris of the Eastern and Southern States, and P. ponderosa and P. Arizonica of the Rocky Mountains and Pacific States. Yellow plover (Zo["o]l.), the golden plover. Yellow precipitate (Med. Chem.), an oxide of mercury which is thrown down as an amorphous yellow powder on adding corrosive sublimate to limewater. Yellow puccoon. (Bot.) Same as Orangeroot. Yellow rail (Zo["o]l.), a small American rail (Porzana Noveboracensis) in which the lower parts are dull yellow, darkest on the breast. The back is streaked with brownish yellow and with black, and spotted with white. Called also yellow crake. Yellow rattle, Yellow rocket. (Bot.) See under Rattle, and Rocket. Yellow Sally (Zo["o]l.), a greenish or yellowish European stone fly of the genus Chloroperla; -- so called by anglers. Yellow sculpin (Zo["o]l.), the dragonet. Yellow snake (Zo["o]l.), a West Indian boa (Chilobothrus inornatus) common in Jamaica. It becomes from eight to ten long. The body is yellowish or yellowish green, mixed with black, and anteriorly with black lines. Yellow spot. (a) (Anat.) A small yellowish spot with a central pit, the fovea centralis, in the center of the retina where vision is most accurate. See Eye. (b) (Zo["o]l.) A small American butterfly (Polites Peckius) of the Skipper family. Its wings are brownish, with a large, irregular, bright yellow spot on each of the hind wings, most conspicuous beneath. Called also Peck's skipper. See Illust. under Skipper, n., 5. Yellow tit (Zo["o]l.), any one of several species of crested titmice of the genus Machlolophus, native of India. The predominating colors of the plumage are yellow and green. Yellow viper (Zo["o]l.), the fer-de-lance. Yellow warbler (Zo["o]l.), any one of several species of American warblers of the genus Dendroica in which the predominant color is yellow, especially D. [ae]stiva, which is a very abundant and familiar species; -- called also garden warbler, golden warbler, summer yellowbird, summer warbler, and yellow-poll warbler. Yellow wash (Pharm.), yellow oxide of mercury suspended in water, -- a mixture prepared by adding corrosive sublimate to limewater. Yellow wren (Zo["o]l.) (a) The European willow warbler. (b) The European wood warbler.| Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc. |
Yolk
Yolk\ (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See Yellow.] [Written also yelk.]1. The yellow part of an egg; the vitellus. 2. (Zo["o]l.) An oily secretion which naturally covers the wool of sheep. Yolk cord (Zo["o]l.), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids. Yolk gland (Zo["o]l.), a special organ which secretes the yolk of the eggs in many turbellarians, and in some other invertebrates. See Illust. of Hermaphrodite in Appendix. Yolk sack (Anat.), the umbilical vesicle. See under Unbilical.| Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc. |
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