From Longman Dictionary of Contemporary Englishsubatomicsub‧a‧tom‧ic /ˌsʌbəˈtɒmɪk◂ $ -ˈtɑː-/ adjective HPEsmaller than an atom or existing within an atom subatomic particles
Examples from the Corpus
subatomic• The residue will consist of cold, invisible, subatomic ashes.• To take a simple example, the important subatomic particle called the electron has a negative electrical charge.• The quantum level is the level of molecules, atoms, subatomic particles, etc.• It investigates phenomena which range in size from subatomic particles to the universe itself.• The B mesons can now be assured of a place in the tables of known subatomic particles.• Quantum cryptography exploits a key principle of quantum mechanics, according to which certain aspects of any subatomic process are inherently unknowable. 