Definition of Dark current

1. Noun. (physics) The temperature-dependant current that flows in a photodetector when no light is shining on it ¹

¹ Source: wiktionary.com

Medical Definition of Dark current

1. Current caused by constant influx of sodium ions into the rod outer segment of retinal photoreceptors and that is blocked by light (leading to hyperpolarization). The plasma membrane sodium channel is controlled through a cascade of amplification reactions initiated by photon capture by rhodopsin in the disc membrane. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Dark Current

dark-lantern
dark-lanterns
dark-lanthorn
dark-skinned
dark adaptation
dark art
dark arts
dark blue
dark bread
dark cell
dark chocolate
dark chocolates
dark comdey
dark culture
dark cultures
dark current (current term)
dark elf
dark elves
dark energy
dark factory
dark field illumination
dark field imaging
dark field microscopy
dark field objective
dark field slides
dark field stop
dark figure
dark green fritillaries
dark green fritillary

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