Linac and Particle accelerator

Linac noun - Ions are accelerated along a linear path by voltage differences on electrodes along the path.

Particle accelerator and linac are semantically related. In some cases you can use "Particle accelerator" instead a noun "Linac".

Particle accelerator noun - A scientific instrument that increases the kinetic energy of charged particles.

Linac and particle accelerator are semantically related. Sometimes you can replace term "Linac" with "Particle accelerator", this terms are similar.