Adjective subatomic has 2 senses

1. subatomic - of or relating to constituents of the atom or forces within the atom; "subatomic particles"; "harnessing subatomic energy"
   
2. subatomic - of dimensions smaller than atomic dimensions
   Antonyms: macroscopic, macroscopical, large (indirect, via microscopic)
   

Subatomic

Definition: Relating to particles or phenomena smaller than an atom.

Examples:

• Adjective: The study of subatomic particles is essential to understanding the fundamental nature of the universe.
• Noun: Scientists are conducting experiments to observe the behavior of subatomics in high-energy collisions.

Related Products:

• Books on Subatomic Particles
• Subatomic Physics Resources