AC
Definition
- Noun:
- An electric current that reverses direction sinusoidally: "AC" is the abbreviation for "alternating current," which is a type of electrical current where the flow of electric charge periodically reverses direction. This is the standard form of electricity delivered to homes and businesses.
- A radioactive element of the actinide series; found in uranium ores: "Ac" is the chemical symbol for the element Actinium, a silvery-white, radioactive metal.
Examples of Usage
- Noun (Alternating Current):
- Most appliances are designed to run on AC.
- The power grid supplies AC to the entire city.
- Noun (Actinium):
- Ac-227 is a common isotope of actinium.
- The sample contained traces of Ac.
Advanced Usage
- "AC/DC": A slang term describing someone or something that can function in two different ways, or a person with a versatile personality. This usage is informal and derives from the electrical terms for alternating and direct current.
- He's very AC/DC; he can work on both creative and analytical projects.
- In technical contexts, "AC" is often used attributively as an adjective (e.g., , ) to describe devices or systems that use alternating current.
Variants and Related Words
- Alternating Current (n): The full term for AC.
- Direct Current (DC) (n): A type of electrical current that flows in one direction only, often contrasted with AC.
- Actinium (n): The full name of the chemical element Ac.
Synonyms
- For AC (current): Alternating current. (There is no true synonym; it is a specific technical term.)
- For Ac (element): Actinium. (The symbol is a direct representation of the element's name.)
Related Phrases
- "Convert AC to DC": To change alternating current into direct current, typically using a rectifier.
- This adapter converts AC to DC for the laptop.
- "AC coupling": An electrical connection that allows alternating current signals to pass while blocking direct current.
- "AC component": In electronics, the alternating part of a signal that varies with time.
Noun
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an electric current that reverses direction sinusoidally
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In the US most household current is AC at 60 cycles per second
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a radioactive element of the actinide series; found in uranium ores
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