- plural of nucleus.
nuclei
Americannoun
noun
Etymology
Origin of nuclei
< Latin nucleī, nominative plural of nucleus; see nucleus
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Under normal circumstances, Purkinje cells inhibit deep nuclei cells.
From Science Daily • Jul. 1, 2026
In our models assuming that spacetime cells exist, the strong and weak nuclear forces, which hold atomic nuclei together, also leave traces in spacetime.
From Science Daily • Jun. 18, 2026
While conventional nuclear plants split heavy atoms in a process called fission, fusion does the opposite: It combines light atomic nuclei into heavier ones, releasing enormous energy without greenhouse-gas emissions or long-lived radioactive waste.
From The Wall Street Journal • Jun. 9, 2026
If the atomic nuclei in a lump of iron were scaled up to human size, for instance, how far apart would they be from each other?
From The Wall Street Journal • May 15, 2026
Three helium nuclei make a carbon nucleus; four, oxygen; five, neon; six, magnesium; seven, silicon; eight, sulfur; and so on.
From "Cosmos" by Carl Sagan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
