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direct current
noun
: an electric current flowing in one direction only and substantially constant in value
—abbreviation DC
Examples of direct current in a Sentence
Recent Examples on the Web
One of Tesla's most significant contributions was the development of the alternating current (AC) electrical system, which is far more efficient than direct current (DC) for transmitting electricity over long distances.
—Vibhas Ratanjee, Forbes, 10 Jan. 2025
Cognitive behavioral therapy, cognitive remediation, mindfulness, psychoeducation and transcranial direct current stimulation were also more effective than a placebo at reducing patients’ symptoms, but this outcome was reported by clinicians only.
—Kristen Rogers, CNN, 17 Dec. 2024
What’s odd about the Ariya’s charge port is that despite being a standard that works at many CCS-capable fast charging stations, there is some negative hollow space between the two direct current pins at the bottom that isn’t present on most other EVs.
—Umar Shakir, The Verge, 4 Dec. 2024
The technical lynchpin of the plan falls on the successful construction of a high voltage direct current (HVDC) submarine cable in the Black Sea.
—IEEE Spectrum, 6 Nov. 2024
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Word History
First Known Use
1849, in the meaning defined above
Dictionary Entries Near direct current
Cite this Entry
“Direct current.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/direct%20current. Accessed 22 Jan. 2025.
Kids Definition
direct current
noun
: an electric current flowing in one direction only
—abbreviation DC
Medical Definition
direct current
noun
: an electric current flowing in one direction only and substantially constant in value
—abbreviation DC
More from Merriam-Webster on direct current
Nglish: Translation of direct current for Spanish Speakers
Britannica.com: Encyclopedia article about direct current
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