Meaning & use
nucleolus
A small, dense structure inside the nucleus of a cell where ribosomes are produced.
See it in a sentence
Under the microscope, the nucleolus appeared as a dark spot within the nucleus.
The nucleolus disassembles during cell division and re-forms afterward.
A note on using this word
Not to be confused with the nucleus itself; the nucleolus is a structure found inside it.
Words with a similar meaning
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