Cell
noun
The smallest unit of life that can replicate independently, and is often called the building block of life.
The human body is made up of trillions of cells.
Often appears as...
- human cell
- animal cell
Usage tips
Academic
noun
A small room in which a prisoner is locked up or in which a monk or nun sleeps.
The prisoner was locked in his cell for 23 hours a day.
Often appears as...
- prison cell
- monk's cell
noun
A small group forming a nucleus of political activity, typically a secret, subversive, or illicit organization.
The resistance cell had plans to overthrow the government.
Often appears as...
- resistance cell
- terrorist cell
noun
An enclosed compartment in a structure, often containing a display or operational equipment.
The bee finished sealing the honey-filled cell.
Often appears as...
- bee cell
- battery cell
noun
A device containing electrodes immersed in an electrolyte, used for generating electricity or for electrolysis.
The remote control needs two AAA battery cells.
Often appears as...
- battery cell
- fuel cell
Usage tips
Academic
noun
The smallest unit of life that can replicate independently, and is often called the building block of life.
The human body is made up of trillions of cells.
Often appears as...
- human cell
- animal cell
Usage tips
Academic
noun
A small room in which a prisoner is locked up or in which a monk or nun sleeps.
The prisoner was locked in his cell for 23 hours a day.
Often appears as...
- prison cell
- monk's cell
noun
A small group forming a nucleus of political activity, typically a secret, subversive, or illicit organization.
The resistance cell had plans to overthrow the government.
Often appears as...
- resistance cell
- terrorist cell
noun
An enclosed compartment in a structure, often containing a display or operational equipment.
The bee finished sealing the honey-filled cell.
Often appears as...
- bee cell
- battery cell
noun
A device containing electrodes immersed in an electrolyte, used for generating electricity or for electrolysis.
The remote control needs two AAA battery cells.
Often appears as...
- battery cell
- fuel cell
Usage tips
Academic
Definition 1 of 5
Pro Tip 1/3Multiple Topics
The word 'cell' in biology might come up in a variety of topics, from genetics to botany.
In marine biology, we studied how algae cells perform photosynthesis.
Pro Tip 2/3Microscale Focus
When used in biology, 'cell' often requires thinking on a very small, microscopic scale.
Cells are too small to see without a microscope.
Pro Tip 3/3Living Organism
In biological context, 'cell' denotes a living component, not a lifeless structure.
Every living organism, from plants to animals, is made up of cells.
Pro Tip 1/3Multiple Topics
The word 'cell' in biology might come up in a variety of topics, from genetics to botany.
In marine biology, we studied how algae cells perform photosynthesis.
Pro Tip 2/3Microscale Focus
When used in biology, 'cell' often requires thinking on a very small, microscopic scale.
Cells are too small to see without a microscope.
Pro Tip 3/3Living Organism
In biological context, 'cell' denotes a living component, not a lifeless structure.
Every living organism, from plants to animals, is made up of cells.
Pro Tip 1/3Multiple Topics
The word 'cell' in biology might come up in a variety of topics, from genetics to botany.
In marine biology, we studied how algae cells perform photosynthesis.
Pro Tip 2/3Microscale Focus
When used in biology, 'cell' often requires thinking on a very small, microscopic scale.
Cells are too small to see without a microscope.
Pro Tip 3/3Living Organism
In biological context, 'cell' denotes a living component, not a lifeless structure.
Every living organism, from plants to animals, is made up of cells.
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Video examples
Bill Gates: The next...
We have the benefits of all the science and technology that we talk about here. We've got cell phones to get information from the public and get information out to them. We have satellite maps where we can see where people are and where they're moving. We have advances in biology that should dramatically change the turnaround time to look at a pathogen
Video examples
Why is it so hard to...
If we could learn how to shut down these lines of communication, we'd have a better shot at vanquishing a tumor permanently. Additionally, mounting evidence suggests we'll need to figure out how to eradicate cancer stem cells. These are rare but seem to have special properties that make them resistant to chemotherapy and radiation.
Video examples
Cell vs. virus: A battle...
like helping cells adhere to their neighbors or binding to nutrients the cell will need. Animal and plant cells have cell membranes. Only plant cells have a cell wall, which is made of rigid cellulose that gives the plant structure. The virus cell that was sneezed into your lungs is sneaky. Pretending to be a friend,
Video examples
What is epigenetics? -...
which means they could affect an organism for its entire life. Sometimes that's a good thing. Epigenetic changes are part of normal development. The cells in an embryo start with one master genome. As the cells divide, some genes are activated and others inhibited.
Video examples
Computing with fluids PIPE...
little cells and nothing else but to me there is something more fundamental which is this idea that in our world we're stuck with two ways of making things there is the subtractive you can take a chisel in chisel of a matter and
Video examples
Cell membranes are way...
shifting components back and forth to help the cell take in food, remove waste, let specific molecules in and out, communicate with other cells, gather information about the environment, and repair itself.
Video examples
The wacky history of...
And all cells come from preexisting cells. To be honest, this all sounds incredibly boring until you dig a little deeper into how the world of microscopic organisms, and this theory came to be.
Video examples
The Deadly Portuguese...
each is armed with many thousands of stinging cells a single tentacle could kill a fish or in rare cases a human but among its lethal tentacles lurks a
Video examples
How do cancer cells...
We all start life as one single cell. Then that cell divides and we are two cells, then four, then eight. Cells form tissues, tissues form organs,
Video examples
What is Skin? PIPE National...
at the surface of it all a velvety overcoat of cells and protein keeps us in and the rest of the world out
Video examples
Bill Gates: The next...
We have the benefits of all the science and technology that we talk about here. We've got cell phones to get information from the public and get information out to them. We have satellite maps where we can see where people are and where they're moving. We have advances in biology that should dramatically change the turnaround time to look at a pathogen
Video examples
Why is it so hard to...
If we could learn how to shut down these lines of communication, we'd have a better shot at vanquishing a tumor permanently. Additionally, mounting evidence suggests we'll need to figure out how to eradicate cancer stem cells. These are rare but seem to have special properties that make them resistant to chemotherapy and radiation.
Video examples
Cell vs. virus: A battle...
like helping cells adhere to their neighbors or binding to nutrients the cell will need. Animal and plant cells have cell membranes. Only plant cells have a cell wall, which is made of rigid cellulose that gives the plant structure. The virus cell that was sneezed into your lungs is sneaky. Pretending to be a friend,
Video examples
What is epigenetics? -...
which means they could affect an organism for its entire life. Sometimes that's a good thing. Epigenetic changes are part of normal development. The cells in an embryo start with one master genome. As the cells divide, some genes are activated and others inhibited.
Video examples
Computing with fluids PIPE...
little cells and nothing else but to me there is something more fundamental which is this idea that in our world we're stuck with two ways of making things there is the subtractive you can take a chisel in chisel of a matter and
Video examples
Cell membranes are way...
shifting components back and forth to help the cell take in food, remove waste, let specific molecules in and out, communicate with other cells, gather information about the environment, and repair itself.
Video examples
The wacky history of...
And all cells come from preexisting cells. To be honest, this all sounds incredibly boring until you dig a little deeper into how the world of microscopic organisms, and this theory came to be.
Video examples
The Deadly Portuguese...
each is armed with many thousands of stinging cells a single tentacle could kill a fish or in rare cases a human but among its lethal tentacles lurks a
Video examples
How do cancer cells...
We all start life as one single cell. Then that cell divides and we are two cells, then four, then eight. Cells form tissues, tissues form organs,
Video examples
What is Skin? PIPE National...
at the surface of it all a velvety overcoat of cells and protein keeps us in and the rest of the world out
Example 1 of 10
Quote examples
Rakul Preet Singh
Indian Actress
I don't get tired of my work because you can't get tired of something you love and enjoy! But, having said that, I wish to get a break of four to five days, or at least three days, switch off my cell phone, and do what I want to.
Quote examples
Ryan Leaf
American Athlete
I didn't know how to deal with real life issues the right way as a humble human being until I was humbled to the point of being put in a jail cell.
Quote examples
Tim Griffin
American Politician
There are people who own cars and are getting free cell phones. A car helps one find a job, too. Where do you draw the line?
Quote examples
John Kani
South African Actor
All over the world, there is someone sitting in a cell because he or she is not allowed freedom of expression.
Quote examples
Giovanni Ribisi
American Actor
I'm old fashioned with my cell phone. I like that human contact and I think it's important.
Quote examples
Harold E. Hughes
American Politician
A great sense of peace entered my body, and seemingly into every cell.
Quote examples
Phil Robertson
American Celebrity
I don't own a cell phone. I've never turned on a computer in my life.
Quote examples
Jerry Della Femina
American Businessman
Kids don't know what life was like without cell phones.
Quote examples
Eric Betzig
American Physicist
There are many cells you could look at forever in 3D.
Quote examples
Peace Pilgrim
American Activist
We are all cells in the same body of humanity.
Quote examples
Rakul Preet Singh
Indian Actress
I don't get tired of my work because you can't get tired of something you love and enjoy! But, having said that, I wish to get a break of four to five days, or at least three days, switch off my cell phone, and do what I want to.
Quote examples
Ryan Leaf
American Athlete
I didn't know how to deal with real life issues the right way as a humble human being until I was humbled to the point of being put in a jail cell.
Quote examples
Tim Griffin
American Politician
There are people who own cars and are getting free cell phones. A car helps one find a job, too. Where do you draw the line?
Quote examples
John Kani
South African Actor
All over the world, there is someone sitting in a cell because he or she is not allowed freedom of expression.
Quote examples
Giovanni Ribisi
American Actor
I'm old fashioned with my cell phone. I like that human contact and I think it's important.
Quote examples
Harold E. Hughes
American Politician
A great sense of peace entered my body, and seemingly into every cell.
Quote examples
Phil Robertson
American Celebrity
I don't own a cell phone. I've never turned on a computer in my life.
Quote examples
Jerry Della Femina
American Businessman
Kids don't know what life was like without cell phones.
Quote examples
Eric Betzig
American Physicist
There are many cells you could look at forever in 3D.
Quote examples
Peace Pilgrim
American Activist
We are all cells in the same body of humanity.
Example 1 of 10
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