VITELLUS

yolk, vitellus

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

Source: WordNet® 3.1


Etymology

Noun

vitellus (countable and uncountable, plural vitelli or vitelluses)

(biology) The contents or substance of the ovum; egg yolk.

(botany) Perisperm in an early condition.

Source: Wiktionary


Vi*tel"lus, n. Etym: [L., the yolk of an egg.]

1. (Biol.)

Definition: The contents or substance of the ovum; egg yolk. See Illust. of Ovum.

2. (Bot.)

Definition: Perisperm in an early condition.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

9 January 2025

PRESENTATION

(noun) (obstetrics) position of the fetus in the uterus relative to the birth canal; “Cesarean sections are sometimes the result of abnormal presentations”


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