Definition of Alecithal

1. a. Applied to those ova which segment uniformly, and which have little or no food yelk embedded in their protoplasm.



Definition of Alecithal

1. Adjective. (biology of an ovum) Tending to segment uniformly, and having little or no yolk embedded in the protoplasm. ¹

¹ Source: wiktionary.com

Definition of Alecithal

1. [adj]

Medical Definition of Alecithal

1. Applied to those ova which segment uniformly, and which have little or no food yelk embedded in their protoplasm. Origin: Gr. Priv. + yelk. Source: Websters Dictionary (01 Mar 1998)

Alecithal Pictures

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Lexicographical Neighbors of Alecithal

ale draper
ale drinker
ale post
ale posts
ale silver
aleak
aleatoric
aleatorily
aleatory
aleatory contract
alebench
alebenches
aleberries
aleberry
alec
alecithal (current term)
alecithal ovum
aleconner
aleconners
alecost
alecosts
alecs
alectoria
alectorides
alectoromachy
alectoromancy
alectryomancy
alectyromancy
alee
alef

Literary usage of Alecithal

Below you will find example usage of this term as found in modern and/or classical literature:

1. Introduction to the study of embryology by Alfred Cort Haddon (1887)
"... the nucleus both before and after fertilisation ; it will here be confined to the former condition. A.—Invertebrates.—Typical or alecithal Segmentation. ..."

2. A Textbook of General Embryology by William Erskine Kellicott (1913)
"Some eggs have been described as alecithal, ie, without yolk, but many of these have been found really to contain a small amount of quite uniformly ..."

3. The Development of the Chick: An Introduction to Embryology by Frank Rattray Lillie (1908)
"Such ova are often termed alecithal, which means literally without yolk. In the literal sense, however, no ova are entirely ..."

4. Outlines of Chordate Development by William Erskine Kellicott (1913)
"Accompanying the return of the mammalian egg to the nearly alecithal condition, however, we do not find a corresponding return to the simpler early ..."

5. Text-book of the embryology of man and mammals by Oscar Hertwig, Edward Laurens Mark (1905)
"... uniformly distributed through the egg (alecithal*). (Amphioxus, Mammals, Man.) B. Eggs with abundant and unequally distributed ..."

6. Proceedings of the Royal Physical Society of Edinburgh by Royal Physical Society of Edinburgh (1888)
"... monotreme ovum and the alecithal placental ovum ; this is seen in the phenomena of segmentation ; the first two segmentation furrows fail to divide the ..."

7. Proceedings of the Royal Physical Society of Edinburgh by Royal Physical Society of Edinburgh (1888)
"... monotreme ovum and the alecithal placental ovum ; this is seen in the phenomena of segmentation; the first two segmentation furrows fail to divide the ..."

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