| CRC | cardiovascular reflex conditioning; clinical research center; colorectal carcinoma; concentrated red... |
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| CRCS | cardiovascular reflex conditioning system |
| DEC | decrease; deoxycholate citrate; diagnostic episode cluster; diethylcarbamazine; dynamic environmenta... |
| HVAC | heating, ventilating, and air conditioning |
| AAALAC | American Association for Accreditation of Laboratory Animal Care |
| second-order conditioning | The use of a previously successfully conditioned stimulus as the unconditioned stimulus for further conditioning. (05 Mar 2000) |
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| skinnerian conditioning | A type of conditioning developed by Skinner in which an experimenter waits for the target response (head scratching) to be conditioned to occur (emitted) spontaneously, immediately after which the organism is given a reinforcer reward; after this procedure is repeated many times, the frequency of emission of the targeted response will have significantly increased over its pre-experiment base rate. See: schedules of reinforcement. Synonym: skinnerian conditioning. (05 Mar 2000) |
| instrumental conditioning | Conditioning in which the response is a prerequisite to achieving some goal; often used as a synonym for operant conditioning, but some psychologists make distinctions in the usages of these two terms. (05 Mar 2000) |
| operant conditioning | A type of conditioning developed by Skinner in which an experimenter waits for the target response (head scratching) to be conditioned to occur (emitted) spontaneously, immediately after which the organism is given a reinforcer reward; after this procedure is repeated many times, the frequency of emission of the targeted response will have significantly increased over its pre-experiment base rate. See: schedules of reinforcement. Synonym: skinnerian conditioning. (05 Mar 2000) |
| tissue conditioning (dental) | The use of a treatment material (tissue conditioner) to re-establish tone and health to irritated oral soft tissue, usually applied to the edentulous alveolar ridge. (12 Dec 1998) |
| trace conditioning | Conditioning when there is no temporal overlap between the conditioning stimulus and the unconditioned stimulus. (05 Mar 2000) |
| transplantation conditioning | Preparative treatment of transplant recipient with various conditioning regimens including radiation, immune sera, chemotherapy, and/or immunosuppressive agents, prior to transplantation. Transplantation conditioning is very common before bone marrow transplantation. (12 Dec 1998) |
| escape conditioning | The technique whereby an organism learns to terminate unpleasant or punishing stimuli by making the appropriate new response which stops the delivery of such stimuli. Compare: avoidance conditioning. Synonym: escape training. (05 Mar 2000) |
| anthropology, physical | The comparative science dealing with the physical characteristics of man as related to his origin, evolution, and development in his total environment. (12 Dec 1998) |
| map, physical | A map of the locations of identifiable landmarks on chromosomes. Physical distance is measured in base pairs. The physical map differs from the genetic map which is based purely on genetic linkage data. In the human genome, the lowest-resolution physical map is the banding patterns of the 24 different chromosomes. The highest-resolution physical map is the complete nucleotide sequence of all chromosomes, a future goal. (12 Dec 1998) |
| restraint, physical | Use of a device for the purpose of preventing the individual from moving all or part of the body. The concept excludes splints and casts. (12 Dec 1998) |
| roentgen-equivalent physical | <radiobiology, unit> A roentgen equivalent physical is a unit of absorbed radiation approximately equivalent to a roentgen, an international unit of x- or gamma-radiation. An obsolete unit of measurement; that quantity of ionizing radiation of any kind which, upon absorption by living tissue, produces an energy gain per gram of tissue equivalent to that produced by 1 roentgen of X-rays or gamma-rays. Acronym: rep See: rad. (05 Mar 2000) |
| physical | Pertaining to the body, to material things or to physics. (18 Nov 1997) |
| physical age | The age in terms of structure rather than of function or of passage of time. Synonym: physical age. (05 Mar 2000) |
| physical allergy | Excessive response to factors in the environment such as heat or cold. (05 Mar 2000) |