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Grade 7
(nu-cle-i) 3 syllables

Definition

plural noun. centers of atoms that contain protons and neutrons.

Example Sentence

We studied the nuclei of the two planets with a telescope.

More Example Sentences

Atoms have nuclei that hold their mass.

Synonyms

centers; cores; hubs

Antonyms

outside

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nuclei
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Rhymes

  • nuclei
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