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Related to vitellus: yolky


 (vĭ-tĕl′əs, vī-)
n. pl. vi·tel·lus·es
The yolk of an egg.

[Latin, probably diminutive of vitulus, calf; see wet- in Indo-European roots.]


n, pl -luses or -li (-laɪ)
(Zoology) zoology rare the yolk of an egg
[C18: from Latin, literally: little calf, later: yolk of an egg, from vitulus calf]


(vɪˈtɛl əs, vaɪ-)

n., pl. -lus•es.
an egg yolk.
[1720–30; < Latin]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vitellus - nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)vitellus - nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)
food, nutrient - any substance that can be metabolized by an animal to give energy and build tissue
egg - animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds
References in periodicals archive ?
TCS Vitellus: A web-based, ready-to-use GUI tool that delivers high-end visual analytics.
Remarkable enlarged granulosa cells were markedly showed the characteristics of phagocytic cells that devoured vitellus. Some of their nuclei were pyknotic: a crescent-shaped chromatin and cytoplasm material was distinguished as being of a characteristic feature of apoptosis (Fig.
Ovarian follicles in mature female gonads are compacted, cuboidal in shape (in transverse section) with mature oocytes (ova) filled with large (300-500 [micro]m, oval-shaped yolk (vitellus) globules (Fig.
All of these efforts by Teed failed, yet, as Millner shows, his following and resources only grew, until he located the "vitellus of the cosmogonic egg" at Estero, Florida.
All haploid larvae exposed to heat shock implementation (41.4[degrees]C) 13 minutes after the fertilization for 2 minutes were dead 2-3 days after running out of vitellus and their caudal length is 1/3 shorter when compared to those of diploid group [35].
(1992) found that mirid predators consumed more young eggs than older eggs, and they concluded that this is due to the fact that young eggs have more vitellus content than older eggs.
The onset of oocyte activation are vitellus ink, release discharge and migrate into the perivitelline space.