Definition of vitelline in English:

vitelline

Syllabification: vi·tel·line
Pronunciation: /vəˈtelən, vī-, -ˌēn, -ˌīn
 
/

adjective

Zoology or Embryology
  • Of or relating to the yolk (or yolk sac) of an egg or embryo, or to yolk-producing organs.
    More example sentences
    • At the second stage, when the sperm cell reaches the vitelline envelope, other recognition molecules allow bindin of the correct species to attach the sperm tightly to the egg.
    • From these observations and following experiments involving membrane removals, the authors concluded that the vitelline and embryonic membranes are essential to osmoregulation during development.
    • The ventral follicle cells produce proteins, like pipe, that are only deposited in the ventral vitelline envelope.

Origin

late Middle English (in the sense 'colored like egg yolk'): from medieval Latin vitellinus, from vitellus (see vitellus).

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