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Definition of Term

yolk
(English) Granules of semi-crystalline phospholipoprotein used as a food reserve of embryonic and early larval stages, usually seen as a yellowish sphere diminishing in size as development proceeds. (See also: yolk sac, egg, LarvalBase)
vitellus
(French) Réserve de nourriture des stades embryonnaires et stades larvaires précoces, habituellement vue comme une sphère jaunâtre qui diminue en taille pendant le développement. (See also: yolk sac, egg, LarvalBase)

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