antinode
/ˈæntɪˌnoʊd/
noun
- A point in a standing wave where the wave has the greatest amplitude (the highest or lowest point of movement).
- The antinode of a sound wave in a tube is where the air pressure changes the most.
- Students marked the antinodes on the rope to see where the wave peaks occurred.
- In a vibrating guitar string, the antinode is the point that moves the most.
Antonyms