{"code":"C20604","name":"Affinity","terminology":"ncit","version":"26.09d","conceptStatus":"DEFAULT","leaf":false,"active":true,"synonyms":[{"name":"affinity","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI-GLOSS","code":"CDR0000655052"},{"name":"Affinity","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Affinity","type":"Preferred_Name","typeCode":"P108"}],"definitions":[{"definition":"In chemistry and biology, the strength of the attaction between two substances, such as two chemicals, or an antigen and an antibody.","code":"P325","type":"ALT_DEFINITION","source":"NCI-GLOSS"},{"definition":"The strength of noncovalent chemical binding between two substances as measured by the dissociation constant of the complex.","code":"P97","type":"DEFINITION","source":"NCI","qualifiers":[{"code":"P381","type":"attribution","value":"On-line Medical Dictionary"}]}],"properties":[{"code":"P366","type":"Legacy Concept Name","value":"Affinity"},{"code":"P106","type":"Semantic_Type","value":"Qualitative Concept"},{"code":"P207","type":"UMLS_CUI","value":"C1510827"}]}