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di·atom·ic | \ ˌdī-ə-ˈtä-mik 
\
\Definition of diatomic
: consisting of two atoms : having two atoms in the molecule
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diatomic
adjectivedi·atom·ic | \ ˌdī-ə-ˈtäm-ik \
\Medical Definition of diatomic
: consisting of two atoms : having two atoms in the molecule
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Time Traveler for diatomic
The first known use of diatomic was circa 1859
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