carbon 13
noun
the stable isotope of carbon having an atomic mass number 13, used as a tracer.
Also
car·bon-13
[kahr-buh n-thur-teen] /ˈkɑr bən θɜrˈtin/.
Origin of carbon 13
First recorded in 1940–45
Words nearby carbon 13
carbolize,
carboloy,
carboluria,
carbon,
carbon 12,
carbon 13,
carbon 14,
carbon 14 dating,
carbon arc,
carbon bisulphide,
carbon black