You know what it looks like… but what is it called?
TAKE THE QUIZ“double current”
We have one entry that includes the term double current.
double-current signaling
noun: a system of telegraphy using both direct and inverse electric currents
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- Rachel seemed to be _____ in every endeavor she started.
You can make only 12 words. Pick the best ones!
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Merriam-Webster unabridged