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# nucleus

«nucleus» in Mova's school dictionary: **the centre of a cell that holds its DNA and controls it** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (a nucleus, nuclei)

### meaning for a pupil

1) (science) The nucleus is the centre of a cell that holds its DNA and controls it. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#m1)

2) (science) The nucleus of an atom is its tiny centre, made of protons and neutrons. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#m2)

3) A nucleus is the central or most important part of a group or thing, as in the nucleus of a team. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#m3)

### sense in the lessons

In biology lessons, plant and animal cells have a nucleus; bacteria do not. In chemistry and physics, the atom's nucleus holds almost all its mass, with electrons around it; nuclear energy comes from it. In everyday talk, a few key players form the nucleus of a team.

### examples

- The nucleus controls what the cell does. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x1)
- Plant and animal cells both have a nucleus. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x2)
- The nucleus of an atom contains protons and neutrons. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x3)
- We drew the nucleus in the middle of our cell diagram. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x4)
- Nuclear power comes from splitting the nucleus of atoms. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x5)
- These five players are the nucleus of the team. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x6)
- The latter scholar has proved that there is a nucleus of stories in every European land which is common to all. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/#x7)

### note

Plural: nuclei (said NEW-klee-eye). Adjective: nuclear. Said NEW-klee-us (UK) or NOO-klee-us (US). Trap: nuclear is often mispronounced nucular.

### In the corpora

- [An atom is made of smaller parts: protons and neutrons in a tiny middle called the nucleus, and electrons around it.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/1-what-is-everything-made-of/13/)

### Trees and pragmatics

[Every meaning and example of «nucleus» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/nucleus/), each sentence with its dependency tree and frames.