National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Isotope

Synonyms

ISOTOPE

Isotope

isotope

Definitions

A form of a chemical element containing a specific number of neutrons and a specific atomic mass.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C47933

ALT_DEFINITION

A form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons (part of the nucleus of an atom). For example, carbon 12, carbon 13, and carbon 14 are isotopes of carbon. They all have six protons in the nucleus, but each has different number of neutrons. Isotopes may be used in certain medical tests and procedures.

code

C47933

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C54452

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C105631

Contributing_Source

FDA

DEFINITION

A form of a chemical element containing a specific number of neutrons and a specific atomic mass.

FULL_SYN

ISOTOPE

Isotope

isotope

label

Isotope

Legacy Concept Name

Isotope

Preferred_Name

Isotope

prefixIRI

Thesaurus:C47933

Semantic_Type

Element, Ion, or Isotope

UMLS_CUI

C0022262

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C1940

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