[ noun ] (immunology) the attraction between an antigen and an antibody
Used in print(Jacob Robbins et al., "The thyroid-stimulating...)
It has been suggested that the plasma thyroxine binding proteins , which have an extremely high affinity for thyroxine , compete with thyroglobulin for thyroxine ( Ingbar and Freinkel , 1957 ) .
[ noun ] inherent resemblance between persons or things
[ noun ] a close connection marked by community of interests or similarity in nature or character
: "found a natural affinity with the immigrants" "felt a deep kinship with the other students" "anthropology's kinship with the humanities"
[ noun ] a natural attraction or feeling of kinship
: "an affinity for politics" "the mysterious affinity between them" "James's affinity with Sam"