Advertisement

Advertisement

View synonyms for blastula

blastula

[ blas-chuh-luh ]

noun

, Embryology.
, plural blas·tu·las, blas·tu·lae [blas, -ch, uh, -lee].
  1. the early developmental stage of an animal, following the morula stage and consisting of a single, spherical layer of cells enclosing a hollow, central cavity.


blastula

/ ˈblæstjʊlə /

noun

  1. an early form of an animal embryo that develops from a morula, consisting of a sphere of cells with a central cavity Also calledblastosphere


blastula

/ blăschə-lə /

, Plural blastulas blăschə-lē′

  1. An animal embryo at the stage immediately following the division of the fertilized egg cell, consisting of a ball-shaped layer of cells around a fluid-filled cavity known as a blastocoel.
  2. Compare gastrulaSee also blastocyst


blastula

  1. The stage of an embryo that consists of just over a hundred cells — a stage reached about one week after fertilization . At this stage the cells are just at the very beginning of cellular differentiation and are said to be totipotent ( See totipotency ).


Discover More

Notes

This is the stage of development where embryonic stems cells can be harvested for medical research.

Discover More

Derived Forms

  • ˈblastular, adjective

Discover More

Other Words From

  • blastu·lar adjective
  • blas·tu·la·tion [blas-ch, uh, -, ley, -sh, uh, n], noun

Discover More

Word History and Origins

Origin of blastula1

1885–90; < New Latin < Greek blast ( ós ) bud, sprout + New Latin -ula -ule

Discover More

Word History and Origins

Origin of blastula1

C19: New Latin; see blasto-

Discover More

Compare Meanings

How does blastula compare to similar and commonly confused words? Explore the most common comparisons:

Discover More

Example Sentences

The hollow sphere which is thus formed is the important stage of the “germinal vesicle,” the blastula, or blastosphere.

Consider its mode of division, and the formation of the blastula, gastrula, and germinal layers.

In a blastula showing complete segmentation the blastomeres of the upper hemisphere are the more finely subdivided.

Our next question concerns the distribution of potentiality, when the embryo is developed further than the blastula stage.

But there is in the blastula no trace of one part of the germ becoming different with respect to others of its parts.

Advertisement

Word of the Day

axolotl

[ak-suh-lot-l ]

Meaning and examples

Start each day with the Word of the Day in your inbox!

By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.

Advertisement

Advertisement

Advertisement


blastostyleblastulation