1. nucleolus

noun. a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis.


  • cell nucleus
  • organelle
  • nucleole
  • nucleus
  • karyon
  • cell organ

Featured Games

Sentences with nucleolus

1. Noun, singular or mass
The plum seed is the nucleolus, the plum flesh is the nucleus and the skin is the nuclear membrane.

2. Adjective
They are manufactured in the nucleolus inside the nucleus and then exported into the cytoplasm.