Nucleus
noun
The center part of an atom where protons and neutrons are located.
In an atom, electrons move around the nucleus.
Often appears as...
- atomic nucleus
- nucleus of an atom
Usage tips
Technical
noun
The main part of a cell that controls its activities.
The nucleus of a cell contains its genetic material.
Often appears as...
- cell nucleus
- genetic material in the nucleus
Usage tips
Technical
noun
The central or most important part of something.
He's the nucleus of the team, everything goes through him.
Often appears as...
- nucleus of a team
- central nucleus
noun
A thing or a person that is the center of attention or activity.
She was the nucleus of their social group.
Often appears as...
- nucleus of social activity
- nucleus of attention
noun
The center part of an atom where protons and neutrons are located.
In an atom, electrons move around the nucleus.
Often appears as...
- atomic nucleus
- nucleus of an atom
Usage tips
Technical
noun
The main part of a cell that controls its activities.
The nucleus of a cell contains its genetic material.
Often appears as...
- cell nucleus
- genetic material in the nucleus
Usage tips
Technical
noun
The central or most important part of something.
He's the nucleus of the team, everything goes through him.
Often appears as...
- nucleus of a team
- central nucleus
noun
A thing or a person that is the center of attention or activity.
She was the nucleus of their social group.
Often appears as...
- nucleus of social activity
- nucleus of attention
Definition 1 of 4
Pro Tip 1/3Atom's Heart
Nucleus refers to the very central, densest part of an atom, crucial for its structure.
Scientists study the atomic nucleus to understand nuclear energy.
Pro Tip 2/3Not Visible
The atomic nucleus is incredibly small and can't be seen with regular microscopes.
Despite being invisible, the nucleus holds most of an atom's mass.
Pro Tip 3/3Not Alone
In physics, 'nucleus' is typically discussed with particles like electrons, neutrons, and protons.
Protons and neutrons bind together in the nucleus, surrounded by electrons.
Pro Tip 1/3Atom's Heart
Nucleus refers to the very central, densest part of an atom, crucial for its structure.
Scientists study the atomic nucleus to understand nuclear energy.
Pro Tip 2/3Not Visible
The atomic nucleus is incredibly small and can't be seen with regular microscopes.
Despite being invisible, the nucleus holds most of an atom's mass.
Pro Tip 3/3Not Alone
In physics, 'nucleus' is typically discussed with particles like electrons, neutrons, and protons.
Protons and neutrons bind together in the nucleus, surrounded by electrons.
Pro Tip 1/3Atom's Heart
Nucleus refers to the very central, densest part of an atom, crucial for its structure.
Scientists study the atomic nucleus to understand nuclear energy.
Pro Tip 2/3Not Visible
The atomic nucleus is incredibly small and can't be seen with regular microscopes.
Despite being invisible, the nucleus holds most of an atom's mass.
Pro Tip 3/3Not Alone
In physics, 'nucleus' is typically discussed with particles like electrons, neutrons, and protons.
Protons and neutrons bind together in the nucleus, surrounded by electrons.
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Video examples
What can Schrödinger's...
Of course, that's what happens, and you know this because you have witnessed events like this countless times. You've been observing the physics of everyday phenomena your entire life. But suppose we explore a question about the physics of atoms, like what does the motion of an electron around the nucleus of a hydrogen atom look like?
Video examples
Making sense of string...
So we go on a journey deep inside the object and examine the constituents. So deep inside -- we all know, you go sufficiently far down, you have atoms. We also all know that atoms are not the end of the story. They have little electrons that swarm around a central nucleus with neutrons and protons.
Video examples
How does an atom-smashing...
So what is an atom smasher? It is a device that collides atomic nuclei together at extremely high energy. The most powerful one scientists have ever built can heat matter to the hottest temperatures ever achieved, temperatures last seen at a trillionth of second after the universe began.
Video examples
How a single-celled...
How? By sending the first free oxygen molecules into our atmosphere, and they did all this as single-celled life forms. They're cyanobacteria, and the story of these simple organisms that don't even have nuclei or any other organelles
Video examples
Radioactivity: Expect...
Although alpha cannot penetrate your skin, if you inhale or injest a radioactive nucleus, the health consequences can be severe. Radioactivity is both useful and deadly, but it is all around us as a background to the natural world.
Video examples
Shifting the visual...
training to interpret this new contrast but there was a problem spreading this technology to the rest of the medical community this is the advance that happened and the images were black and white where the nuclei popped out like
Video examples
Just How Small is an...
That would be about the density of a nucleus. So I'm saying that if you took every car in the world and put it into your one-foot box, you would have the density of one nucleus. OK, let's review. The atom is really,
Video examples
Dog MRI PIPE Studying The...
brain response is and we're actually going to be looking at a very specific area called the caudate nucleus we also have another hand signal that looks like this and that means no reward after scanning many dogs
Video examples
Origins of the Universe...
the radiation era's last two stages, the protons and neutrons underwent a significant change. They fused and created nuclei. And in doing so, they created the first chemical element in the universe, helium.
Video examples
How cosmic rays help us...
within the Earth's atmosphere but from outer space. Our universe is composed of many astronomical objects. BIllions of stars of all sizes, black holes, active galactic nuclei, astroids, planets and more.
Video examples
What can Schrödinger's...
Of course, that's what happens, and you know this because you have witnessed events like this countless times. You've been observing the physics of everyday phenomena your entire life. But suppose we explore a question about the physics of atoms, like what does the motion of an electron around the nucleus of a hydrogen atom look like?
Video examples
Making sense of string...
So we go on a journey deep inside the object and examine the constituents. So deep inside -- we all know, you go sufficiently far down, you have atoms. We also all know that atoms are not the end of the story. They have little electrons that swarm around a central nucleus with neutrons and protons.
Video examples
How does an atom-smashing...
So what is an atom smasher? It is a device that collides atomic nuclei together at extremely high energy. The most powerful one scientists have ever built can heat matter to the hottest temperatures ever achieved, temperatures last seen at a trillionth of second after the universe began.
Video examples
How a single-celled...
How? By sending the first free oxygen molecules into our atmosphere, and they did all this as single-celled life forms. They're cyanobacteria, and the story of these simple organisms that don't even have nuclei or any other organelles
Video examples
Radioactivity: Expect...
Although alpha cannot penetrate your skin, if you inhale or injest a radioactive nucleus, the health consequences can be severe. Radioactivity is both useful and deadly, but it is all around us as a background to the natural world.
Video examples
Shifting the visual...
training to interpret this new contrast but there was a problem spreading this technology to the rest of the medical community this is the advance that happened and the images were black and white where the nuclei popped out like
Video examples
Just How Small is an...
That would be about the density of a nucleus. So I'm saying that if you took every car in the world and put it into your one-foot box, you would have the density of one nucleus. OK, let's review. The atom is really,
Video examples
Dog MRI PIPE Studying The...
brain response is and we're actually going to be looking at a very specific area called the caudate nucleus we also have another hand signal that looks like this and that means no reward after scanning many dogs
Video examples
Origins of the Universe...
the radiation era's last two stages, the protons and neutrons underwent a significant change. They fused and created nuclei. And in doing so, they created the first chemical element in the universe, helium.
Video examples
How cosmic rays help us...
within the Earth's atmosphere but from outer space. Our universe is composed of many astronomical objects. BIllions of stars of all sizes, black holes, active galactic nuclei, astroids, planets and more.
Example 1 of 10
Quote examples
Chen-Ning Yang
American Physicist
The strongest interactions are the nuclear interactions, which include the forces that bind nuclei together and the interaction between the nuclei and the z mesons. It also includes the interactions that give rise to the observed strange-particle production.
Quote examples
Paul Kane
English Writer
The most terrifying thing I can think of is being alone - and I mean utterly alone, like no one else in the world alone - at night. That's the nucleus of the first story in my collection and it's also where the title came from for the book.
Quote examples
Andrew H. Knoll
American Scientist
I think you can say that life is a system in which proteins and nucleic acids interact in ways that allow the structure to grow and reproduce. It's that growth and reproduction, the ability to make more of yourself, that's important.
Quote examples
Norman Douglas
British Writer
There is in us a lyric germ or nucleus which deserves respect; it bids a man to ponder or create; and in this dim corner of himself he can take refuge and find consolations which the society of his fellow creatures does not provide.
Quote examples
Holly Hunter
American Actress
My nucleus of friends or something protects me from the machinery that is Hollywood. I don't think I'm on the same quest that a lot of people are. I guess that could be a limitation.
Quote examples
Gordon Gee
American Educator
A truly great university is a nucleus of artistic expression. It fosters creative, critical thought, and serves as a platform for civil discourse.
Quote examples
Jada Pinkett Smith
American Actress
I'm the glue that keeps it all together. I'm the nucleus of an entertainment family. My day-to-day is making decisions to keep life above water.
Quote examples
Robert Collier
American Author
Plant the seed of desire in your mind and it forms a nucleus with power to attract to itself everything needed for its fulfillment.
Quote examples
Sophie Gregoire Trudeau
Canadian First Lady
Girls are womb of humanity, nucleus of the family and are supposed to become fully participant citizens in our own countries.
Quote examples
Jason Kidd
American Athlete
There's always room for improvement. We have a nucleus that's pretty good. You want players that will help.
Quote examples
Chen-Ning Yang
American Physicist
The strongest interactions are the nuclear interactions, which include the forces that bind nuclei together and the interaction between the nuclei and the z mesons. It also includes the interactions that give rise to the observed strange-particle production.
Quote examples
Paul Kane
English Writer
The most terrifying thing I can think of is being alone - and I mean utterly alone, like no one else in the world alone - at night. That's the nucleus of the first story in my collection and it's also where the title came from for the book.
Quote examples
Andrew H. Knoll
American Scientist
I think you can say that life is a system in which proteins and nucleic acids interact in ways that allow the structure to grow and reproduce. It's that growth and reproduction, the ability to make more of yourself, that's important.
Quote examples
Norman Douglas
British Writer
There is in us a lyric germ or nucleus which deserves respect; it bids a man to ponder or create; and in this dim corner of himself he can take refuge and find consolations which the society of his fellow creatures does not provide.
Quote examples
Holly Hunter
American Actress
My nucleus of friends or something protects me from the machinery that is Hollywood. I don't think I'm on the same quest that a lot of people are. I guess that could be a limitation.
Quote examples
Gordon Gee
American Educator
A truly great university is a nucleus of artistic expression. It fosters creative, critical thought, and serves as a platform for civil discourse.
Quote examples
Jada Pinkett Smith
American Actress
I'm the glue that keeps it all together. I'm the nucleus of an entertainment family. My day-to-day is making decisions to keep life above water.
Quote examples
Robert Collier
American Author
Plant the seed of desire in your mind and it forms a nucleus with power to attract to itself everything needed for its fulfillment.
Quote examples
Sophie Gregoire Trudeau
Canadian First Lady
Girls are womb of humanity, nucleus of the family and are supposed to become fully participant citizens in our own countries.
Quote examples
Jason Kidd
American Athlete
There's always room for improvement. We have a nucleus that's pretty good. You want players that will help.
Example 1 of 10
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