from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Unwanted current or signal in a photodetector in the absence of incident light, resulting from thermally excited electrons or leakage of current along the current path.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics The temperature-dependant current that flows in a
photodetectorwhen no lightis shining on it
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