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subatom
noun
(1)
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subatom
[ suhb-
at
-
uh
m ]
Phonetic (Standard)
IPA
noun
,
Chemistry.
any component of an
atom
.
Discover More
Word History and Origins
Origin of
subatom
1
First recorded in 1875–80;
sub-
+
atom
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subatmospheric
subatomic
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