affinity (n.)

  1. (immunology) the attraction between an antigen and an antibody

  2. (anthropology) kinship by marriage or adoption; not a blood relationship

  3. (biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts; in anatomical structure prehistoric man shows close affinity with modern humans

    [ Syn: phylogenetic relation ]

  4. 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; anthropologys kinship with the humanities

    [ Syn: kinship ]

  5. the force attracting atoms to each other and binding them together in a molecule; basic dyes have an affinity for wool and silk

    [ Syn: chemical attraction ]

  6. inherent resemblance between persons or things

  7. a natural attraction or feeling of kinship; an affinity for politics; the mysterious affinity between them; James's affinity with Sam'

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.