ac

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ac

An electrician checks the AC wiring in a home.

Definition
  1. 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.
ac

An electrician checks the AC wiring in a home.

Noun
  1. an electric current that reverses direction sinusoidally
    • In the US most household current is AC at 60 cycles per second
  2. a radioactive element of the actinide series; found in uranium ores

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