yolk, vitellus
(noun) nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)
Source: WordNet® 3.1
yolk (countable and uncountable, plural yolks)
The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young.
The grease in a sheep's fleece.
Source: Wiktionary
Yolk, n. Etym: [OE. yolke, yelke, ýolke, ýelke, AS. geoloca, geoleca, fr. geolu yellow. See Yellow.] [Written also yelk.]
1. The yellow part of an egg; the vitellus.
2. (Zoöl.)
Definition: An oily secretion which naturally covers the wool of sheep. Yolk cord (Zoöl.), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids.
– Yolk gland (Zoöl.), 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
25 March 2025
(noun) fixation (as by a plaster cast) of a body part in order to promote proper healing; “immobilization of the injured knee was necessary”
Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red – indicating ripeness – they are picked, processed, and dried. Dried coffee seeds are roasted to varying degrees, depending on the desired flavor.
