formation
[for-ma´shun] 1. the process of giving shape or form; the creation of an entity, or of a structure of definite shape.
2. a structure of definite shape.
chiasma formation the process by which a chiasma is formed; it is the cytologic basis of genetic recombination, or crossing over.
compromise formation in psychoanalysis a substituted idea or act representing and permitting partial expression of a repressed conflict.
concept formation the ability to organize a variety of information to form thoughts and ideas, a cognitive
performance component in occupational therapy.
reaction formation a
defense mechanism in which a person adopts conscious attitudes, interests, or feelings that are the opposites of unconscious feelings, impulses, or wishes. For example, a person may use revulsion or repugnance to defend against an unconscious desire or attraction.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.