| anchorage dependence | <cell biology, cell culture> The necessity for attachment (and spreading) in order that a cell will grow and divide in culture. Loss of anchorage dependence seems to be associated with greater independence from external growth control and is probably one of the best correlates of tumourigenicity in vivo. Anchorage independence is usually detected by cloning cells in soft agarose, only anchorage independent cells will grow and divide (as they will in suspension). (18 Nov 1997) |
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| physical dependence | <pharmacology> Physiologic adaptation of the body to the presence of opioid is required to maintain the same level of analgesia. (31 Dec 1997) |
| morphine dependence | Strong dependence, both physiological and emotional, upon morphine. (12 Dec 1998) |
| heroin dependence | Strong dependence, both physiological and emotional, upon heroin. (12 Dec 1998) |
| psychological dependence | <psychiatry> Pattern of compulsive drug use characterised by a continued craving for an opioid and the need to use the opioid for effects other than pain relief. (16 Dec 1997) |
| substance dependence | A pattern of behavioural, physiologic, and cognitive symptoms that develop due to substance use or abuse; usually indicated by tolerance to the effects of the substance and withdrawal symptoms that develop when use of the substance is terminated. (05 Mar 2000) |
| dependence | The quality or condition of relying upon, being influenced by, or being subservient to a person or object reflecting a particular need. Origin: L. Dependeo, to hang from (05 Mar 2000) |
| drug dependence | Use of a drug for a reason other than which it was intended or in a manner or in quantities other than directed. Drug dependence is a compulsion to take a drug to produce a desired effect or prevent unpleasant effects when the drug is withheld. Risk factors for drug abuse include: low self esteem, inability to deal with stress and emotional instability. Juveniles use drugs due to peer pressure. Signs of drug use in children include: a change in friends or group, long absences from home, poor performance in school, seclusion, stealing, lying, criminal behaviour, deteriorating family relationships, signs of drug intoxication and changes in behaviour. Commonly abused drugs include narcotic analgesic agents, benzodiazepines, cocaine, amphetamines, barbiturates, marijuana, LSD and phencyclidine. Many labs now offer quick and inexpensive urine drug screening. Psychological counseling and parental support will be necessary in children with this problem. (27 Sep 1997) |
| inverse density dependence | <epidemiology> See density dependence. (05 Dec 1998) |
| field dependence-independence | The ability to respond to segments of the perceptual experience rather than to the whole. (12 Dec 1998) |
| absolute alcohol | Water having been removed. Synonym: anhydrous alcohol. (05 Mar 2000) |
| acyclic monoterpene primary alcohol - NADP oxidoreductase | <enzyme> From catmint nepeta racemosa; involved in the biosynthesis of iridoid monoterpenes; oxidises geraniol, nerol, and their 10-hydroxy derivatives in the presence of nadp(+). Registry number: EC 1.1.1.- Synonym: monoterpene primary alcohol - nadp oxidoreductase, ampano (26 Jun 1999) |
| alcohol | <chemical> An organic chemical containing one or more hydroxyl groups. Alcohols can be liquids, semisolids or solids at room temperature. Common alcohols include ethanol (the type found in alcoholic beverages) methanol (found in methylated spirit and can cause blindness and other nervous system damage if ingested) and propanol. (06 May 1997) |
| alcohol acid | A group of compounds that contain both the carboxyl and hydroxy radicals; e.g., glycolic acid. (05 Mar 2000) |
| alcohol addiction | <disease> A disorder characterised by pathological pattern of alcohol use that causes a serious impairment in social or occupational functioning. In DSN III R this is termed alcohol abuse or, if tolerance or withdrawal is present, alcohol dependence. (18 Nov 1997) |