https://www.dictionary.com/browse/nucleus

Nucleus definition, a central part about which other parts are grouped or gathered; core: A few faithful friends formed the nucleus of the club. See more.

https://www.britannica.com/science/nucleus-biology

Nucleus: Nucleus, in biology, a specialized structure occurring in most cells ( except bacteria and blue-green algae) and separated from the rest of the cell by a ...

https://www.vocabulary.com/dictionary/nucleus

A nucleus is often called the brain, or control center, of a eukaryotic cell (that is, a cell with a nucleus).

https://www.merriam-webster.com/dictionary/nucleus

Nucleus definition is - the small bright body in the head of a comet. How to use nucleus in a sentence.

https://www.thoughtco.com/the-cell-nucleus-373362

The cell nucleus is the command center of our cells. It contains our chromosomes and genetic information needed for the reproduction of life.

https://en.wikipedia.org/wiki/Cell_nucleus

In cell biology, the nucleus is a membrane-bound organelle found in eukaryotic cells. ..... As the major defining characteristic of the eukaryotic cell, the nucleus' ...

https://www.yourdictionary.com/nucleus

nucleus definition: The nucleus is the center core of an atom that has a positive charge and that contains most of the atom's mass, or the central heart of an ...

https://dictionary.cambridge.org/us/dictionary/english/nucleus

nucleus meaning: 1. the central part of an atom, usually made up of protons and neutrons 2. the part of a cell that controls its growth: 3. the group of people or ...

https://www.mechanobio.info/what-is-the-nucleus/

The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells. In animal cells it is both the largest and stiffest organelle and is ...

http://www.biology4kids.com/files/cell_nucleus.html

Not all cells have a nucleus. Biology breaks cell types into eukaryotic (those with a defined nucleus) and prokaryotic (those with no defined nucleus). You may ...