subatomic definitions

WordNet (r) 3.0 (2005)

adj
1: of or relating to constituents of the atom or forces within the atom; "subatomic particles"; "harnessing subatomic energy"
2: of smaller than atomic dimensions

Merriam Webster's

adjective Date: 1903 1. of or relating to the inside of the atom 2. of, relating to, or being particles smaller than atoms

Oxford Reference Dictionary

adj. occurring in or smaller than an atom.

Collin's Cobuild Dictionary

A subatomic particle is a particle which is part of an atom, for example an electron, a proton, or a neutron. (TECHNICAL) ADJ: ADJ n

Moby Thesaurus

atomatic, atomic, atomiferous, atomistic, corpuscular, cyclic, diatomic, dibasic, embryonic, evanescent, germinal, granular, heteroatomic, heterocyclic, hexatomic, homocyclic, impalpable, imperceptible, imponderable, inappreciable, indiscernible, infinitesimal, intangible, invisible, isobaric, isocyclic, isoteric, isotopic, microcosmic, microscopic, molecular, monatomic, pentatomic, tenuous, tetratomic, thin, triatomic, tribasic, ultramicroscopic, unseeable