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1. (n.) affinity
a natural liking for or attraction to a person, thing, idea, etc.
2. affinity
the object of such liking or attraction.
3. affinity
relationship by marriage or by ties other than those of blood
4. affinity
close resemblance, agreement, or connection.
5. affinity
a resemblance of structure or behavior that results from or implies a phylogenetic relationship.
6. affinity
the force by which atoms are held together in chemical compounds.
7. (adj.) affinity
designating persons who share the same interests.
Etymology: (1275–1325; < MF < L affīnitās connection by marriage. See affine , -ity)
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| Definition of 'Affinity' |
Princeton's WordNet |
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1. (noun) affinity
(immunology) the attraction between an antigen and an antibody
2. (noun) affinity
(anthropology) kinship by marriage or adoption; not a blood relationship
3. (noun) affinity, phylogenetic relation
(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"
4. (noun) affinity, kinship
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"
5. (noun) affinity, chemical attraction
the force attracting atoms to each other and binding them together in a molecule
"basic dyes have an affinity for wool and silk"
6. (noun) affinity
inherent resemblance between persons or things
7. (noun) affinity
a natural attraction or feeling of kinship
"an affinity for politics"; "the mysterious affinity between them"; "James's affinity with Sam"
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| Definition of 'Affinity' |
Webster Dictionary |
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1. (noun) Affinity
relationship by marriage (as between a husband and his wife's blood relations, or between a wife and her husband's blood relations); -- in contradistinction to consanguinity, or relationship by blood; -- followed by with, to, or between
2. (noun) Affinity
kinship generally; close agreement; relation; conformity; resemblance; connection; as, the affinity of sounds, of colors, or of languages
3. (noun) Affinity
companionship; acquaintance
4. (noun) Affinity
that attraction which takes place, at an insensible distance, between the heterogeneous particles of bodies, and unites them to form chemical compounds; chemism; chemical or elective affinity or attraction
5. (noun) Affinity
a relation between species or highe/ groups dependent on resemblance in the whole plan of structure, and indicating community of origin
6. (noun) Affinity
a superior spiritual relationship or attraction held to exist sometimes between persons, esp. persons of the opposite sex; also, the man or woman who exerts such psychical or spiritual attraction
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| Definition of 'Affinity' |
The Standard Electrical Dictionary |
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1. Affinity
The attraction of atoms and in some cases perhaps of molecules for each other by the force of chemical attraction. When the affinity is allowed to act or is carried out, a chemical change, as distinguished from a physical or mechanical change, ensues. Thus if sulphur and iron are each finely powdered and are mixed the change and mixture are mechanical. If slightly heated the sulphur will melt, which is a physical change. If heated to redness the iron will combine with the sulphur forming a new substance, ferric sulphide, of new properties, and especially characterized by unvarying and invariable ratios of sulphur to iron. Such change is a chemical one, is due to chemical affinity, is due to a combination of the atoms, and the product is a chemical compound.
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Definitions of Affinity 
