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• Attraction
• Natural attraction
• Natural liking
• The force attracting atoms to each other and binding them together in a molecule
• Inherent resemblance between persons or things
• A close connection marked by community of interests or similarity in nature or character
• (biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts
• Not a blood relationship
• (immunology) the attraction between an antigen and an antibody
• A natural attraction or feeling of kinship
• Kinship by marriage or adoption