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/ˌsʌbəˈtɒmɪk/ · adjective
(physics) Relating to particles that are constituents of the atom, or are smaller than an atom; such as proton, neutron, electron, etc..
We humans are so stuck in the middle of the cosmic scales — in average height, one-hundredth of one-septillionth (10^-24) the size of the observable universe, and with typical life spans of a couple octillion attoseconds. And an attosecond is an eternity compared with the lifetime of the elusive Higgs boson, a subatomic particle that exists for one-thousandth of an attosecond before decaying.
The electron microscope is able to resolve detail at the subatomic level.
Use sub atomic when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sub atomic means (physics) Relating to particles that are constituents of the atom, or are smaller than an atom; such as proton, neutron, electron, etc..
Common synonyms include small, microscopic, microscopical.
The opposite depends on the specific sense.
We humans are so stuck in the middle of the cosmic scales — in average height, one-hundredth of one-septillionth (10^-24) the size of the observable universe, and with typical life spans of a couple octillion attoseconds. And an attosecond is an eternity compared with the lifetime of the elusive Higgs boson, a subatomic particle that exists for one-thousandth of an attosecond before decaying.
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