noun Physics.

the region of maximum amplitude between two adjacent nodes in a standing wave.

Origin of antinode

First recorded in 1880–85; anti- + node
Related formsan·ti·nod·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for antinodal



physics a point at which the amplitude of one of the two kinds of displacement in a standing wave has maximum value. Generally the other kind of displacement has its minimum value at this pointSee also standing wave Compare node
Derived Formsantinodal, adjective
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 antinodal



1872, from anti- + node.

Online Etymology Dictionary, © 2010 Douglas Harper

antinodal in Science



In a standing wave, the region or point of maximum amplitude between two adjacent nodes. Compare node.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.