Word Study
vitelline
CIDE DICTIONARY
vitelline, a. [L. vitellus the yolk of an egg.].
Of or pertaining to the yolk of eggs; as, the vitelline membrane, a smooth, transparent membrane surrounding the vitellus. [1913 Webster]
OXFORD DICTIONARY
vitelline, adj. of the vitellus.
Idiom
vitelline membrane the yolk-sac.
Etymology
med.L vitellinus (as VITELLUS)
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