noun.
For a standing wave, the region or point of maximum amplitude between adjacent nodes.
The Century Dictionary and Cyclopedia
noun.
A point of a vibrating string where the amplitude of vibration is greatest. It is at the middle of a loop or ventral segment, and half-way between two adjacent nodes.
noun.
A region of maximumamplitude situated between adjacentnodes of a vibratingbody, such as a string
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
(physics) the point of maximum displacement in a periodic system
Word Usage
"By its very nature, this imminent node–antinode state is expected to make global temperature vary significantly above and below a common mean which itself may be approximately constant or may at certain times undergo relatively slow drifts."