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a complex of unlearned responses characteristic of a species. adj., adj instinc´tive.
death instinct Freud's concept of an unconscious drive toward dissolution and death, in opposition to the life instinct.
herd instinct the instinct or urge to be one of a group and to conform to its standards of conduct and opinion.
life instinct Freud's concept of all the constructive tendencies of the organism aimed at maintenance and perpetuation of the individual and species, in opposition to the death instinct.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
an instinct of living creatures toward self-destruction, death, or a return to the inorganic lifelessness from which they arose.
Synonym(s): aggressive instinct
Farlex Partner Medical Dictionary © Farlex 2012
A primitive impulse for destruction, decay, and death, postulated by Sigmund Freud as coexisting with and opposing the life instinct. Also called Thanatos.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
death in·stinct(deth in'stingkt)
The instinct of all living creatures toward self-destruction, death, or a return to the inorganic lifelessness from which they arose.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012