vitelline

adjective
vi·​tel·​line | \vī-ˈte-lən, -ˌlēn, -ˌlīn\

Definition of vitelline 

1 : resembling the yolk of an egg especially in yellow color

2 : of, relating to, or producing yolk

First Known Use of vitelline

15th century, in the meaning defined at sense 1

History and Etymology for vitelline

Middle English, from Medieval Latin vitellinus, from Latin vitellus egg yolk

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The first known use of vitelline was in the 15th century

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vitelline

adjective
vi·​tel·​line | \-ˈtel-ən, -ˌēn, -ˌīn\

Medical Definition of vitelline 

: of, relating to, or producing yolk

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