The Collaborative International Dictionary
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.]
The yellow part of an egg; the vitellus.
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(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.
Wiktionary
n. (obsolete spelling of yolk English)
Usage examples of "yelk".
On the broad plains of Campannlat, phagors became increasingly dominant, relying for meat on the herds of yelk and biyelk, which appeared in growing numbers, and becoming bolder in their attacks on the Sons of Freyr.
They were in army uniform, the yelks were half-shaved, in the military fashion.
At length, two or possibly three small rapid-moving yelks would emerge from throat or anus, to face the starveling world oubide.