telolecithal

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“
In the discoblastic ova the food-yelk gathers at one side, at the vegetal or lower pole of the vertical axis, while the nucleus of the ovum and the great bulk of the formative yelk lie at the upper or animal pole (hence these ova are also called "telolecithal").

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Definitions (2)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. adjective Having a yolk that is concentrated at one end: a telolecithal egg.

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Examples (5)

  • In the discoblastic ova the food-yelk gathers at one side, at the vegetal or lower pole of the vertical axis, while the nucleus of the ovum and the great bulk of the formative yelk lie at the upper or animal pole (hence these ova are also called "telolecithal"). —  The Evolution of Man — Volume 1
  • An ovum such as this, in which the protoplasm is concentrated towards one pole, is called telolecithal. —  Text Book of Biology, Part 1: Vertebrata
  • g primitive gut, u primitive mouth, p peristomal pole-cells, i entoderm, e ectoderm, d dorsal side, v ventral side In these "telolecithal" ova, or ova with the yelk at one end (for instance, in the cyclostoma and amphibia), the gastrulation then usually takes place in such a way that in the cleavage of the impregnated ovum the animal (usually the upper) half splits up more quickly than the vegetal (lower). —  The Evolution of Man — Volume 1
  • In these "telolecithal" ova, or ova with the yelk at one end (for instance, in the cyclostoma and amphibia), the gastrulation then usually takes place in such a way that in the cleavage of the impregnated ovum the animal (usually the upper) half splits up more quickly than the vegetal (lower). —  The Evolution of Man — Volume 1
  • "telolecithal"). —  The Evolution of Man — Volume 1
 

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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. telo- + Greek lekithos, egg yolk + -al1.

Toggle Century etymologies Century Dictionary (1)

  1. from Greek τέλος, end, + λέκιθος, the yolk of an egg.
 

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/tɛləˈlɛsɪθəl/
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