Definition

1. Noun:
   • A unit of electric current: An "amp" is the base unit of electric current in the International System of Units (SI), formally called an ampere. It measures the flow of electric charge.
   • A nucleotide in biochemistry: In a biochemical context, "amp" is an abbreviation for adenosine monophosphate, a nucleotide that serves as a fundamental component in cellular energy metabolism.

Usage Examples

• Noun (Electric Current):
  • This device draws a current of 10 amps.
  • A standard household outlet is usually rated for 15 or 20 amps.
• Noun (Biochemistry):
  • AMP is a crucial molecule in the transfer of cellular energy.
  • The enzyme catalyzes the conversion of ATP to ADP and AMP.

Advanced Usage

• Technical Specification: Used to specify the capacity or draw of electrical devices, circuits, and fuses.
  • The circuit breaker is rated for 30 amps to prevent overload.
• Scientific Context: Used in research and academic writing in biology and chemistry.
  • Cyclic AMP (cAMP) acts as a secondary messenger in many biological processes.

Variants and Related Words

• Ampere (n): The full, formal name for the unit of electric current.
  • One ampere is defined as one coulomb of charge passing per second.
• Amplifier (n): An electronic device that increases the power of a signal. Often informally shortened to "amp" in music contexts (e.g., guitar amp). This is a distinct, related word.
• Adenosine Monophosphate (n): The full name for the biochemical compound AMP.
• Milliamp (n): One thousandth of an ampere, a common subunit.
  • The sensor operates on a current of just a few milliamps.

Synonyms

• Ampere: The formal synonym for the unit of current.
• Adenylate: A less common synonym for adenosine monophosphate in biochemistry.

Related Phrases

• Amp hour (Ah): A unit of electric charge, representing the charge transferred by a steady current of one ampere flowing for one hour.
  • The battery has a capacity of 50 amp hours.
• Volt-amp (VA): A unit used for apparent power in alternating current circuits.

Noun

1. a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
2. the basic unit of electric current adopted under the Systeme International d'Unites
   • a typical household circuit carries 15 to 50 amps