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1. Mutually dependent.
2. Of or relating to a relationship in which one person is psychologically dependent in an unhealthy way on someone who is addicted to a drug or self-destructive behavior, such as chronic gambling.
One who is codependent or in a codependent relationship.

co′de·pen′dence, co′de·pen′den·cy n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Someone who supports the addiction of another person by excusing, denying, or concealing behavior.
See also: coalcoholic
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Cermak's diagnostic criteria for a codependent personality disorder, as summarized by Morgan (1991), include:
The author explains how she was recovering from what she calls a very strong "codependent spell." She was deeply in love with a person who wouldn't/couldn't stop drinking.
Codependent behavior originates from feelings of guilt and accountability which, in their turn, makes relatives take the burden on themselves at the expense of their life quality by focusing on the life of the other.
The codependent spouse stops allowing himself to ask if it IS too much to ask and just goes along with the demands because the immediate alternative--an angry drank--is too disagreeable to be borne.
There Was a Little Girl: The Real Story of My Mother and Me offers readers Brooke's own perspective on this complicated and codependent relationship.
His imperial, hierarchical, male-dominated model produces what O'Murchu calls "codependent believers": competent and committed Catholic adults who leave their intelligence at the doors of the church.
Ultimately, the denial cracks and imbalances give rise to frictions and blame -- holding a codependent partner responsible for problems of one's own making.
Go to the store immediately and pick up a copy of the classic Codependent No More by Melody Beattie.
But, as she puts it, today "progressives have a codependent relationship to the Democratic Party."
You talk about codependency--share how you see codependency manifest and what can someone in a codependent relationship do to awaken to that relationship challenge?