megacycle

/'megə,saikl/

Thân thiện

A radio technician adjusts a dial labeled in megacycles.

Definition

1. Noun:
   • A unit of frequency equal to one million cycles per second: A "megacycle" is a measurement of frequency, specifically representing one million complete cycles of a wave occurring in one second. This term is an older name for the unit now more commonly called a megahertz (MHz).

Usage Examples

• Noun:
  • The radio station broadcasts at a frequency of 1.2 megacycles.
  • Early technical specifications for this device listed its operating frequency in megacycles per second.

Advanced Usage

• The term "megacycle" is considered somewhat dated in modern technical and scientific contexts. It has been largely replaced by the SI unit "megahertz" (MHz), where 1 megacycle = 1 megahertz.
  • The old manual refers to a 5-megacycle signal, which we would now call a 5-MHz signal.

Variants and Related Words

• Megahertz (MHz) (n): The modern, standard unit of frequency equal to one million hertz (cycles per second). This is the preferred term.
  • Modern processors have clock speeds measured in gigahertz (GHz), which are thousands of megahertz.
• Kilocycle (n): An older term for a unit of frequency equal to one thousand cycles per second, now called a kilohertz (kHz).

Synonyms

• Megahertz (MHz): The direct modern equivalent and synonym for "megacycle."

Học thuật

Noun

1. one million periods per second

Từ đồng nghĩa

• megahertz
• MHz
• megacycle per second
• Mc