Definition of yolk stalk in English:

yolk stalk

Syllabification: yolk stalk

Entry from US English dictionary

noun

A tubular connection between the yolk sac and the digestive tract of a developing embryo.

Definition of yolk stalk in:

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Word of the day dinkum
Pronunciation: ˈdɪŋkəm
adjective
(of an article or person) genuine, honest, true