Definitions

1. noun

The central or most important part of something, especially a cell, or the plural form of nucleus.

“The nuclei of the atoms reacted to form a new element.”

2. noun

The plural form of nucleus, referring to the plural cells in an organism, especially in the context of embryology.

“The nuclei of the fertilized eggs divided and formed a blastocyst.”

3. noun

A region or part of something that is of the greatest importance, value, or activity.

“The financial nuclei of the company were under scrutiny for tax evasion.”