rod
3
7.5
- noun
- /rɑd/
- Specialized
- But the rods were actually, they're designed to detect light at low levels, very low levels.
- rods and cones
- rod photoreceptor cell
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Watch on YouTubeI feel, I feel so I feel so naked that you you're referring to my rods and cones.
- I feel, I feel so I feel so naked that you you're referring to my rods and cones.
- They actually do have more rods in their eyes so they can see better in low light than we can.
- Cones are mainly responsible for daytime vision and the rods are mainly responsible for vision at night or under low light conditions, generally speaking.
Examples
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Apparently, one of the key factors in human night vision is a chemical in the rod cells of the eye called rhodopsin.
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Cones are mainly responsible for daytime vision and the rods are mainly responsible for vision at night or under low light conditions, generally speaking.
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One problem with those sensitive rod cells is they mostly help with peripheral vision.
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In humans, rods are mostly used for seeing when light levels are low.
Academic text (2009) -
First of all, we have the rods and the cones.
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They actually do have more rods in their eyes so they can see better in low light than we can.
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Hence, light intensity thresholds for the rod visual system are much lower than for the cone visual system.
Academic text (1995) -
So the rods and cones in your eye actually capture light energy from the visual world and turn that light energy into a neural signal.
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Dim-light vision is controlled mostly by rhodopsin pigments in rod photoreceptor cells.
Academic text (2012) -
The rod cells in our eyes allow us to see in dim light, making nighttime activities possible.
Synonyms
1
7.4
A cell at the back of the eye that helps you see in very low light
1
5.7
A tiny part at the back of the eye that helps you see in low light
Idioms
- Archaic
1
9.6
A future problem someone creates for themselves that causes trouble later
Compounds
- Specialized
4
6.7
A metal rod inserted into a nuclear reactor to absorb neutrons and slow the reaction
- Specialized
1
6.7
A rod that connects the steering parts to the front wheels so they turn together
1
7.0
A puppet moved by long sticks, with one stick for the head and others for the arms and legs
- Specialized
A strong steel bar used in drills and machines that work under high pressure
How Light-Sensitive
- Specialized
3
7.5
- Specialized
4
7.0
Surface Forms
Etymology
Rod for the light-sensing cell comes from the old English word rodd, meaning 'stick', because these cells look like tiny rods in the eye. So rods are the thin cells that help us see in dim light.