noun
fundamental interaction
Physics term for the four fundamental forces: gravitation, electromagnetism, weak interaction, and strong interaction.
素粒子の相互作用には重力、電磁気力、弱い力、強い力の四つがある。
There are four fundamental interactions: gravity, electromagnetism, the weak force, and the strong force.
Synonym for fundamental interaction, often used interchangeably in physics contexts.
Compound of 素粒子 (elementary particle) + の (possessive particle) + 相互作用 (interaction).