Rod

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ROD. A measure sixteen feet and a half long; a perch.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Data acquisition from the membrane current of the rod cell is performed via suction electrode technique in, Ref [35].
The present study has confirmed these findings and shown that, in terms of numbers of gold particles, the synaptic terminal contains roughly 4 times the amount of phosducin than might be predicted on the basis of a random distribution of molecules throughout the rod cell. Expressed in the same way, the myoid domain exhibits 2-3 times the amount whilst the OS and nucleus have less phosducin than might be predicted on the same basis.
Ali's group transplanted immature rod cells from newborn mice into the retinas of night-blind adult mice.
The geometry of a rod cell demands that there be some messenger substance; the light-sensing molecules, rhodopsins, sit in membrane disks that are not continuous with the outer membrane containing the ion channels responsible for the electrical signal.
In the dark, only the rod cells around the outside of your retina are active and allow you to see.
Rod cells perceive contrast in low light (basically black and white vision) and cone cells provide colour vision.
But because dark-adapted rods have nearly the same sensitivity to red light as our L-cones, red light that is bright enough to read by is sufficient to excite our rod cells somewhat.
It has been suggested that age-related changes may be due to insufficient vitamin A reaching the rod cells to allow normal photoreceptor function and survival.
There's a chemical called Rhodopsin in your millions of rod cells in your ryes and it determines your night vision.
The retina's rod cells absorb blue light for fuzzier monochromatic night vision.
To see the shell you need to use averted vision, that is to look to one side of the object rather than straight at it, thereby bringing your light-sensitive rod cells into play.