Definition of singlet
1
[from its having only one thickness of cloth]
chiefly British
: an athletic jersey
also
: undershirt
2
: an atom or molecule that has no net electronic magnetic moment
also
: an excited state of an atom or molecule that is a singlet
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Merriam-Webster unabridged
Share singlet
Time Traveler for singlet
The first known use of singlet was circa 1746
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