meroblastic

/ˌmɛrəˈblæstɪk/
adjective
  1. Relating to or denoting an egg that undergoes partial cleavage, where only part of the yolk divides during early development.
    • In a meroblastic egg, the cell division is restricted to the small disc of cytoplasm on top of the yolk.
    • The biologist explained that meroblastic cleavage is common in animals with yolky eggs.
    • Birds and reptiles have meroblastic eggs because of the large amount of yolk.
Antonyms