vi·tel·lus

(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.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vitellus

(vɪˈtɛləs)

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]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

vi•tel•lus

(vɪˈtɛl əs, vaɪ-)

n., pl. -lus•es.

an egg yolk.

[1720–30; < Latin]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

vitellus - nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)

yolk

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

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References in periodicals archive

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.

Atresia and Apoptosis in Pre- and Postovulatory Follicles of Sharptooth Catfish (Clarias gariepinus, Burchell, 1822)

This fact reflects also in the vitellus composition.

The effects of L-lysine in the diet of silver catfish (Rhamdia voulezi) female broodstocks

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.

Population and reproductive biology of the channeled whelk, Busycotypus canaliculatus, in the us Mid-Atlantic

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.

The Allure of Immortality: An American Cult, a Florida Swamp, and a Renegade Prophet

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].

Different Heat Shock Application Effect on Gynogenetic Production of Zebrafish (Danio rerio)

(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.

Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): pest population suppression and potential for combined use with a generalist predator

The onset of oocyte activation are vitellus ink, release discharge and migrate into the perivitelline space.

Insulin like growth factor--I complex of goat seminal plasma increasing the percentage of embrio clevage on the in vitro fertilization process