Diurnal
adjective
Happening or active during the day, not at night.
Some animals are diurnal, meaning they are most active during the day.
Often appears as...
- diurnal creatures
- diurnal activity
adjective
Lasting or happening in one day.
A flower that is diurnal will bloom during the day and close at night.
Often appears as...
- diurnal variation
- diurnal rhythm
adjective
Relating to or happening in a period of approximately one day.
The diurnal rotation of the Earth causes day and night.
Often appears as...
- diurnal motion
- diurnal cycle
Usage tips
Technical
adjective
Happening or active during the day, not at night.
Some animals are diurnal, meaning they are most active during the day.
Often appears as...
- diurnal creatures
- diurnal activity
adjective
Lasting or happening in one day.
A flower that is diurnal will bloom during the day and close at night.
Often appears as...
- diurnal variation
- diurnal rhythm
adjective
Relating to or happening in a period of approximately one day.
The diurnal rotation of the Earth causes day and night.
Often appears as...
- diurnal motion
- diurnal cycle
Usage tips
Technical
Definition 1 of 3
Pro Tip 1/3Activity Pattern
Diurnal often describes an organism's active hours, opposite of nocturnal.
Owls are not diurnal; they hunt at night.
Pro Tip 2/3Common Confusion
Don't confuse diurnal with nocturnal, which means active at night.
Unlike the nocturnal rodents, squirrels are diurnal.
Pro Tip 3/3Environmental Context
Diurnal can describe processes that occur during daylight, like photosynthesis.
Diurnal patterns of light affect plant growth.
Pro Tip 1/3Activity Pattern
Diurnal often describes an organism's active hours, opposite of nocturnal.
Owls are not diurnal; they hunt at night.
Pro Tip 2/3Common Confusion
Don't confuse diurnal with nocturnal, which means active at night.
Unlike the nocturnal rodents, squirrels are diurnal.
Pro Tip 3/3Environmental Context
Diurnal can describe processes that occur during daylight, like photosynthesis.
Diurnal patterns of light affect plant growth.
Pro Tip 1/3Activity Pattern
Diurnal often describes an organism's active hours, opposite of nocturnal.
Owls are not diurnal; they hunt at night.
Pro Tip 2/3Common Confusion
Don't confuse diurnal with nocturnal, which means active at night.
Unlike the nocturnal rodents, squirrels are diurnal.
Pro Tip 3/3Environmental Context
Diurnal can describe processes that occur during daylight, like photosynthesis.
Diurnal patterns of light affect plant growth.
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Video examples
Christopher Golden: Bush...
We did this in both diurnal and nocturnal surveys. We wanted to understand the ways in which hunting, and I was very unidirectionally focused, looking at how hunting impacted these wildlife population dynamics, and not just lemurs but the tenrecs. These are like little hedgehogs. We set up a mark and capture project
Video examples
Reintroducing The...
helps they're certainly becoming more active during the day so they've always been diurnal they're not naturally nocturnal because the awareness has been raised about otters people are more prone to see them if that makes sense so it's all about getting the education out raising the awareness about the species
Video examples
Safari Live - Day 356 PIPE...
so there it's like a little cocoon of saliva which doesn't sound great and it completely protects them from odours being released so the Predators cannot actually smell the parrotfish so it's the same in the coral reefs as it is on one the diurnal animals will begin to
Video examples
Safari Live - Day 134 PIPE...
danger isn't really from the Lions you can't see during the day Lions have a very healthy respect for human beings human beings being the dominant diurnal predator and they'll actually try to avoid or run away from human beings mostly and the brushroll cars were safe
Video examples
Safari Live - Day 329 PIPE...
day now where we kind of all the daylight's animals are starting to stop and it's about to come they're kind of peaceful time where it's just in between the nocturnal and the diurnal sort of sounds and Bush goes very very very stories at this time that you want to
Video examples
Safari Live - Day 333 PIPE...
night and you don't want to you don't want to affect the hunt so that would be very difficult and less that's a diurnal animal often cheetah well cheetah will normally always hunt in daylight hours or all full moon they've been known to hunt in full moon
Video examples
Safari Live - Day 42 PIPE...
disappeared means that we are switching to infrared I'm going to be switching to infrared and of course for the duration of the drive we will be in infrared hours a diurnal fall from what we've seen not so much but as an essentially
Video examples
Safari Live - Day 304 PIPE...
yes you do a good boy you're a good boy well done thank you in those gorgeous brown eyes deep deep deep in color not the light-colored eyes of a lipid or lion that of course a indicative of a diurnal hunter Amy says that he would
Video examples
Safari Live - Day 178 PIPE...
cheetah are generally diurnal hunters they hunt during the day and especially in the harsh light of the day those black markings help reflect light away from the eyes so now able to see a lot better when they're are chasing down
Video examples
Safari Live - Day 7 PIPE...
chance to see the slender because they're just so quick and they're quite shy as well so they tend to stick to the undergrowth but they are a mongoose that are diurnal they they're active during
Video examples
Christopher Golden: Bush...
We did this in both diurnal and nocturnal surveys. We wanted to understand the ways in which hunting, and I was very unidirectionally focused, looking at how hunting impacted these wildlife population dynamics, and not just lemurs but the tenrecs. These are like little hedgehogs. We set up a mark and capture project
Video examples
Reintroducing The...
helps they're certainly becoming more active during the day so they've always been diurnal they're not naturally nocturnal because the awareness has been raised about otters people are more prone to see them if that makes sense so it's all about getting the education out raising the awareness about the species
Video examples
Safari Live - Day 356 PIPE...
so there it's like a little cocoon of saliva which doesn't sound great and it completely protects them from odours being released so the Predators cannot actually smell the parrotfish so it's the same in the coral reefs as it is on one the diurnal animals will begin to
Video examples
Safari Live - Day 134 PIPE...
danger isn't really from the Lions you can't see during the day Lions have a very healthy respect for human beings human beings being the dominant diurnal predator and they'll actually try to avoid or run away from human beings mostly and the brushroll cars were safe
Video examples
Safari Live - Day 329 PIPE...
day now where we kind of all the daylight's animals are starting to stop and it's about to come they're kind of peaceful time where it's just in between the nocturnal and the diurnal sort of sounds and Bush goes very very very stories at this time that you want to
Video examples
Safari Live - Day 333 PIPE...
night and you don't want to you don't want to affect the hunt so that would be very difficult and less that's a diurnal animal often cheetah well cheetah will normally always hunt in daylight hours or all full moon they've been known to hunt in full moon
Video examples
Safari Live - Day 42 PIPE...
disappeared means that we are switching to infrared I'm going to be switching to infrared and of course for the duration of the drive we will be in infrared hours a diurnal fall from what we've seen not so much but as an essentially
Video examples
Safari Live - Day 304 PIPE...
yes you do a good boy you're a good boy well done thank you in those gorgeous brown eyes deep deep deep in color not the light-colored eyes of a lipid or lion that of course a indicative of a diurnal hunter Amy says that he would
Video examples
Safari Live - Day 178 PIPE...
cheetah are generally diurnal hunters they hunt during the day and especially in the harsh light of the day those black markings help reflect light away from the eyes so now able to see a lot better when they're are chasing down
Video examples
Safari Live - Day 7 PIPE...
chance to see the slender because they're just so quick and they're quite shy as well so they tend to stick to the undergrowth but they are a mongoose that are diurnal they they're active during
Example 1 of 10
Quote examples
John James Audubon
American Scientist
The varying modes of flight exhibited by our diurnal birds of prey have always been to me a subject of great interest, especially as by means of them I have found myself enabled to distinguish one species from another, to the farthest extent of my power of vision.
Quote examples
Siri Hustvedt
American Novelist
Nobody knows what either sleep or waking consciousness is, even though these two have long been seen as the two sides of being: part of life's unvarying diurnal rhythm.
Quote examples
John James Audubon
American Scientist
The varying modes of flight exhibited by our diurnal birds of prey have always been to me a subject of great interest, especially as by means of them I have found myself enabled to distinguish one species from another, to the farthest extent of my power of vision.
Quote examples
Siri Hustvedt
American Novelist
Nobody knows what either sleep or waking consciousness is, even though these two have long been seen as the two sides of being: part of life's unvarying diurnal rhythm.
Example 1 of 2
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