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affinity

[ uh-fin-i-tee ]
/ əˈfɪn ɪ ti /
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noun, plural af·fin·i·ties.
adjective
of or relating to persons who share the same interests: to arrange charter flights for opera lovers and other affinity groups.
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Origin of affinity

1275–1325; Middle English affinite<Middle French <Latin affīnitās connection by marriage. See affine, -ity

OTHER WORDS FROM affinity

non·af·fin·i·ty, noun, plural non·af·fin·i·ties, adjective

WORDS THAT MAY BE CONFUSED WITH affinity

affinity , infinity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use affinity in a sentence

British Dictionary definitions for affinity

affinity
/ (əˈfɪnɪtɪ) /

noun plural -ties

Derived forms of affinity

affinitive, adjective

Word Origin for affinity

C14: via Old French from Latin affīnitāt- connected by marriage, from affīnis bordering on, related
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for affinity

affinity
[ ə-fĭnĭ-tē ]

n.
An attraction or force between particles that causes them to combine.
The attraction between an antigen and an antibody.
A relationship or resemblance in structure between species that suggests a common origin.
The selective staining of a tissue by a dye.
The selective uptake of a dye, chemical, or other substance by a tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for affinity

affinity
[ ə-fĭnĭ-tē ]

A relationship or resemblance in structure between species that suggests a common origin.
An attraction or force between particles that causes them to combine, as the attraction between an antigen and an antibody.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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