Fluorescence
noun
The emission of light by a material that has absorbed light or other electromagnetic radiation.
The ruby has a deep red fluorescence under ultraviolet light.
Often appears as...
- ultraviolet fluorescence
- fluorescence microscopy
Usage tips
Technical
noun
A bright coloured glowing seen in certain substances due to the absorption of radiant energy.
The fluorescence of the diamond was captivating.
Often appears as...
- fluorescence emission
- laser fluorescence
noun
The emission of light by a material that has absorbed light or other electromagnetic radiation.
The ruby has a deep red fluorescence under ultraviolet light.
Often appears as...
- ultraviolet fluorescence
- fluorescence microscopy
Usage tips
Technical
noun
A bright coloured glowing seen in certain substances due to the absorption of radiant energy.
The fluorescence of the diamond was captivating.
Often appears as...
- fluorescence emission
- laser fluorescence
Definition 1 of 2
Pro Tip 1/3Scientific Term
Used mainly in scientific contexts, like chemistry and physics, to describe a physical phenomenon.
Scientists use fluorescence to track changes in cells.
Pro Tip 2/3Not Always Visible
Fluorescence isn't always visible to the naked eye; sometimes, special equipment is needed.
They detected the fluorescence with a special camera.
Pro Tip 3/3Light Absorption
Focus on the process: Materials absorb light then emit it, which is the essence of fluorescence.
Some minerals show fluorescence after absorbing sunlight.
Pro Tip 1/3Scientific Term
Used mainly in scientific contexts, like chemistry and physics, to describe a physical phenomenon.
Scientists use fluorescence to track changes in cells.
Pro Tip 2/3Not Always Visible
Fluorescence isn't always visible to the naked eye; sometimes, special equipment is needed.
They detected the fluorescence with a special camera.
Pro Tip 3/3Light Absorption
Focus on the process: Materials absorb light then emit it, which is the essence of fluorescence.
Some minerals show fluorescence after absorbing sunlight.
Pro Tip 1/3Scientific Term
Used mainly in scientific contexts, like chemistry and physics, to describe a physical phenomenon.
Scientists use fluorescence to track changes in cells.
Pro Tip 2/3Not Always Visible
Fluorescence isn't always visible to the naked eye; sometimes, special equipment is needed.
They detected the fluorescence with a special camera.
Pro Tip 3/3Light Absorption
Focus on the process: Materials absorb light then emit it, which is the essence of fluorescence.
Some minerals show fluorescence after absorbing sunlight.
Compare with
bioluminescencebrillianceemissionglowincandescenceirradiatephosphorescenceradiance
Never forget "Fluorescence"
Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!
Video examples
Glow-in-the-dark sharks...
to see how prevalent this phenomenon is. And fish are much more interesting than corals, because they have really advanced vision, and some of the fish even have, the way that I was photographing it, they have lenses in their eyes that would magnify the fluorescence. So I wanted to seek this out further.
Video examples
William Noel: Revealing...
With this kind of imaging -- this kind of infrared, ultraviolet, invisible light imaging -- we were never going to image through the gold ground forgeries. How were we going to do that? Well we took the manuscript, and we decided to image it in X-ray fluorescence imaging.
Video examples
Manu Prakash: A 50-cent...
a platform for fluorescence, bright-field, polarization, projection, all kinds of advanced microscopy built purely by folding paper. So, now you think, how is that possible? I'm going to show you some examples here, and we will run through some of them.
Video examples
Earth's mysterious red...
But this measure can be unreliable. In contrast, chlorophyll fluorescence is a direct measure of photosynthetic activity. It can help us infer how much oxygen is being released and how much carbon is being absorbed in a given system.
Video examples
Quyen Nguyen:...
we're trying to excise cancer, we don't know where the cancer is. We're trying to preserve nerves; we can't see where they are. So I said, wouldn't it be great if we could find a way to see nerves with fluorescence?
Video examples
How does our gut talk to...
one I call it a gut and a brain in a dish on the left side you have in green this gut sensor that has been isolated by fluorescence from a mouse and on your right side you have a neuron from the
Video examples
This Platypus Can Glow...
things what that is going on here well let's hear from the scientist paula annich who made this extraordinary discovery so why is platypus fluorescence important one of the main reasons is
Video examples
The Colorful,...
A visible and magical fluorescence. Even the dead leaf mantis was certainly sparkling like liquid fire. And to our delight, the whole jungle reverberated in unimaginable colors.
Video examples
The Last Coral Reef of...
and hope to protect them so beautiful they really are bright green fluorescence like this indicates that the coral is healthy scientists think they glow this color to
Video examples
Biologist Illuminates...
would enable them to see this hidden universe of fluorescence there were so many open questions that we began to explore
Video examples
Glow-in-the-dark sharks...
to see how prevalent this phenomenon is. And fish are much more interesting than corals, because they have really advanced vision, and some of the fish even have, the way that I was photographing it, they have lenses in their eyes that would magnify the fluorescence. So I wanted to seek this out further.
Video examples
William Noel: Revealing...
With this kind of imaging -- this kind of infrared, ultraviolet, invisible light imaging -- we were never going to image through the gold ground forgeries. How were we going to do that? Well we took the manuscript, and we decided to image it in X-ray fluorescence imaging.
Video examples
Manu Prakash: A 50-cent...
a platform for fluorescence, bright-field, polarization, projection, all kinds of advanced microscopy built purely by folding paper. So, now you think, how is that possible? I'm going to show you some examples here, and we will run through some of them.
Video examples
Earth's mysterious red...
But this measure can be unreliable. In contrast, chlorophyll fluorescence is a direct measure of photosynthetic activity. It can help us infer how much oxygen is being released and how much carbon is being absorbed in a given system.
Video examples
Quyen Nguyen:...
we're trying to excise cancer, we don't know where the cancer is. We're trying to preserve nerves; we can't see where they are. So I said, wouldn't it be great if we could find a way to see nerves with fluorescence?
Video examples
How does our gut talk to...
one I call it a gut and a brain in a dish on the left side you have in green this gut sensor that has been isolated by fluorescence from a mouse and on your right side you have a neuron from the
Video examples
This Platypus Can Glow...
things what that is going on here well let's hear from the scientist paula annich who made this extraordinary discovery so why is platypus fluorescence important one of the main reasons is
Video examples
The Colorful,...
A visible and magical fluorescence. Even the dead leaf mantis was certainly sparkling like liquid fire. And to our delight, the whole jungle reverberated in unimaginable colors.
Video examples
The Last Coral Reef of...
and hope to protect them so beautiful they really are bright green fluorescence like this indicates that the coral is healthy scientists think they glow this color to
Video examples
Biologist Illuminates...
would enable them to see this hidden universe of fluorescence there were so many open questions that we began to explore
Example 1 of 10
Quote examples
Stefan Hell
Romanian Physicist
According to the belief, molecules closer together than 200 nanometers could not be told apart with focused light. This is because, in a packed molecular crowd, the molecules shout out their fluorescence simultaneously, causing their signal, their voices, to be confused.
Quote examples
Stefan Hell
Romanian Physicist
According to the belief, molecules closer together than 200 nanometers could not be told apart with focused light. This is because, in a packed molecular crowd, the molecules shout out their fluorescence simultaneously, causing their signal, their voices, to be confused.
Example 1 of 1
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension