substitution

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substitution

 [sub″stĭ-too´shun]
the act of putting one thing in the place of another, such as the chemical replacement of one atom or substituent group by another. Called also replacement.
a defense mechanism in which an individual replaces an unattainable or unacceptable goal, emotion, or motive with one that is attainable or acceptable.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

sub·sti·tu·tion

(sŭb'sti-tū'shŭn),
1. In chemistry, replacement of an atom or group in a compound by another atom or group (for example, substitution of H by Cl in CH4 to give CH3Cl).
2. In psychoanalysis, an unconscious defense mechanism by which an unacceptable or unattainable goal, object, or emotion is replaced by one that is more acceptable or attainable; the process is more acute and direct, and less subtle, than sublimation.
[L. substitutio, to put in place of another]
Farlex Partner Medical Dictionary © Farlex 2012

substitution

Psychiatry An unconscious defense mechanism through which an unattainable or unacceptable goal, emotion, or object is replaced by one that is more attainable or acceptable. See Ego defense mechanism.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

sub·sti·tu·tion

(sŭb'sti-tū'shŭn)
1. chemistry The replacement of an atom or group in a compound by another atom or group.
2. psychoanalysis An unconscious defense mechanism by which an unacceptable or unattainable goal, object, or emotion is replaced by one that is more acceptable or attainable; the process is more acute and direct, and less subtle, than sublimation.
[L. substitutio, to put in place of another]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

substitution

  1. a reaction in which an atom or group of atoms is removed and replaced by another atom or group.
  2. the replacement of one amino acid by another.
  3. the replacement of one base by another in a nucleotide or nucleic acid.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

sub·sti·tu·tion

(sŭb'sti-tū'shŭn)
chemistry the replacement of an atom or group in a com pound by another atom or group.
[L. substitutio, to put in place of another]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about substitution

Q. Do people substitute one addiction with another? If someone used to be addicted to alcohol and drugs, but is now clean for several months, is it likely that he will develop an addiction to something else (for example cigarettes or gambling)?

A. I'd just like to add my 2 cents worth: Addictive behavior transfers to just about anything; addiction is the problem. Just as addicts have to learn that alcohol is also a drug, we must recognize that addiction is the problem; it is the behavior that is the problem. A common thing for addicts to do is to stop using drugs (including alcohol) and to substitute with people instead, for example, to become involved in codependent relationships with others, or to recognize that their ongoing relationships may also be codependent. It's not uncommon for individuals to go to CoDA (Codependents Anonymous) in addition to AA/NA or GA(Gambler's Anonymous), MA (Marijuana Anonymous)...Others find it more beneficial to use one program (like NA, e.g.), while realizing that addiction refers to more than just a drug or substance.

Q. Any suggestions for coping with asthma in 5 year old? My daughter has asthma. It comes on when she has a cold or an ear or throat infection. I had to give her a liquid steroid last night as she had asthma really badly, the trouble is the steroid makes her so hyper-active, jumping off lounges and running around etc. It drives me crazy because she really needs to rest. I have seen specialists and this is what they all prescribe. What sort of medications do you give your asthmatic child? Are there any new developments I'm not aware of? I would really like some natural remedies if there is any, or diet tips.

A. hi whiteh,i am a retired respiratory therapist,depending on how bad your child is with her attacks will determine what types of meds work for her steroids are given for bad asthma an it might be the only thing that works good for her,her dr knows best.if your child has a regular dr. get a pulmonary specialist for her.----also steroids should NOT BE STOPPED right AWAY if your child has been on high doses this can cause her to have a bad attack.---mrfoot56

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