yolk sac

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yolk sac

noun yolk sacs

A membranous sac attached to an embryo, providing early nourishment in the form of yolk in bony fishes, sharks, reptiles, birds, and primitive mammals.
Similar: yolk bag

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MLA

"yolk sac." Wiktionary, via Micwyn, micwyn.com/word/yolk%20sac. Accessed 6 Nov. 2026.

APA

yolk sac. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/yolk%20sac

Chicago

"yolk sac." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/yolk%20sac.

BibTeX

@misc{yolk_sac_2026,
  title = {yolk sac},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/yolk%20sac},
  urldate = {2026-11-06}
}