vitellus


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Related to vitellus: yolky

yolk

 [yōk]
the stored nutrient of the ovum.

yolk

(yōk, yōlk),
1. One of the types of nutritive material stored in the oocyte (ovum) for the nutrition of the embryo; yolk is particularly abundant and conspicuous in the eggs of birds. Synonym(s): vitellus
2. Fatty material found in the wool of sheep; when extracted and purified, it becomes lanolin.
[A.S. geolca; geolu, yellow]

vitellus

/vi·tel·lus/ (vi-tel´us) [L.] yolk.

vitellus

(vĭ-tĕl′əs, vī-)
n. pl. vitel·luses
The yolk of an egg.

vitellus

See yolk.

yolk

(yōk)
1. One of the types of nutritive material stored in the oocyte for the nutrition of the embryo; particularly abundant and conspicuous in the eggs of birds.
Synonym(s): vitellus.
2. Fatty material found in the wool of sheep; when extracted and purified, it becomes lanolin.
[A.S. geolca;geolu, yellow]

vitellus

the yolk of egg.
References in periodicals archive ?
Rappelons que, pendant la vitellogenese, le corps gras synthetise un precurseur de la vitelline (principale proteine du vitellus des oeufs des insectes), la vitellogenine: celle-ci est secretee dans l'hemolymphe et absorbe par les ovocytes en cours du developpement.
Maternally derived antibodies were efficiently transmitted in vitellus, further confirming that offspring of females hyperimmunized with the inactivated vaccine received high titers of maternal antibodies.
Some lipid classes, namely phospholipids, have an important role in the composition of the gametes (Pollero and Iribarne, 1988), because they are probably involved in the synthesis of the vitellus, which is a yolk phospholipoprotein (Fujii, 1960).
Archaeologist Joseph Severn who found the 43 gold Roman coins at a dig in the City of London last summer Twelve of the coins found in all their 22-carat-gold glory which belonged to the eras of the following Roman rulers (from left to right): Antoninus Pius (AD138-41), Faustina (AD138-41), Hadrian (AD117-38), Lucilla (AD164-9), Lucius Aelius (AD138), Lucius Verus (AD165-6), Marcus Aurelius (AD161-80), Nero (AD54-68), Titus (AD79-81), Trajan (AD98-117), Vespasian (AD69-79) and Vitellus (AD69)
Deutoplasm--The nutritive material or yolk in the cytoplasm or vitellus of an ovum or egg.