definitions

megahertz

[ meg-uh-hurts ]
/ ˈmɛg əˌhɜrts /
|

noun, plural meg·a·hertz, meg·a·hertz·es. Electricity.

a unit of frequency, equal to one million cycles per second. Abbreviation: MHz

Nearby words

megafauna, megaflop, megaflops, megagamete, megagametophyte, megahertz, megahit, megajoule, megakaryoblast, megakaryocyte, megakaryocytic leukemia

Origin of megahertz

First recorded in 1940–45; mega- + hertz
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for megahertz

British Dictionary definitions for megahertz

megahertz

/ (ˈmɛɡəˌhɜːts) /

noun plural -hertz

one million hertz; one million cycles per secondSymbol: MHz Former name: megacycle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for megahertz

megahertz

n.

1941, from mega- + Hertz.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for megahertz

megahertz

[ mĕg′ə-hûrts′ ]

n.

One million cycles per second. Used especially as a radio frequency unit.megacycle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for megahertz

megahertz

[ mĕg′ə-hûrts′ ]

A unit of frequency equal to one million cycles per second, or one million hertz.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for megahertz

megahertz

One million cycles per second. Often used to indicate computer processing speed.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.