| target behaviour | Operant in behaviour modification therapy, the prescribed behaviour. (05 Mar 2000) |
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| behaviour and behaviour mechanisms | The observable response made to a situation and the unconscious processes underlying it. (12 Dec 1998) |
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| GI-tract target lesion | <radiology> Metastatic melanoma, primary neoplasm, spindle cell tumour (benign or malignant), lymphoma, carcinoid, carcinoma, metastasis, breast carcinoma, lung carcinoma, renal carcinoma, Kaposi's sarcoma, eosinophilic granuloma, ectopic pancreas (12 Dec 1998) |
| molybdenum target tube | An X-ray tube with an anode surface made of molybdenum instead of tungsten, used in mammography. (05 Mar 2000) |
| target | 1. An object fixed as goal or point of examination. 2. In the ophthalmometer, the mire. Synonym: target organ. 4. Anode of an X-ray tube. See: X-ray. Origin: It. Targhetta, a small shield (05 Mar 2000) |
| target cell | An erythrocyte in target cell anaemia, with a dark centre surrounded by a light band that again is encircled by a darker ring; it thus resembles a shooting target; such cell's also appear after splenectomy. A cell lysed by cytotoxic T lymphocytes, as in graft rejection. Synonym: Mexican hat cell. (05 Mar 2000) |
| target cell anaemia | Any anaemia with a conspicuous number of target cells in the peripheral blood; characteristic of the thalassaemias and also found in several haemoglobinopathies. (05 Mar 2000) |
| target gland | The effector that functions when stimulated by the internal secretion of another gland or by some other stimulus. (05 Mar 2000) |
| target lesions of liver/spleen | <radiology> Lymphosarcoma (including Kaposi sarcoma), melanoma (12 Dec 1998) |
| target organ | A tissue or organ upon which a hormone exerts its action; generally, a tissue or organ with appropriate receptors for a hormone. Synonym: target. (05 Mar 2000) |
| target patient | In group therapy, the patient being analyzed in turn by another member patient. (05 Mar 2000) |
| target plasma | <radiobiology> Plasma used to trap a neutral atom beam. A background plasma of sufficiently high density and temperature can ionize neutral atoms more effectively than the Lorentz process (where v cross B creates effective electric field). (09 Oct 1997) |
| target regulation | <physiology> General term for an interaction between neurons and their targets by which target derived signals influence the differentiation of the innervating neurons. (18 Nov 1997) |
| target response | In conditioning, any behaviour or specific response chosen by the experimenter; its frequency is intended to increase or decrease by the judicious pairing with it of a reinforcer when it occurs. Synonym: target behaviour, target response. (05 Mar 2000) |
| adaptive behaviour | Any behaviour that enables an organism to adjust to a particular situation or environment. (05 Mar 2000) |
| adaptive behaviour scales | A behavioural assessment device to quantify the levels of skills of mentally retarded and developmentally delayed individuals in interacting with the environment; consists of three developmentally related factors: 1) personal self-sufficiency, e.g., eating, dressing; 2) community self-sufficiency, e.g., shopping, communicating; 3) personal and social responsibility, e.g., use of leisure time, job performance. See: intelligence. (05 Mar 2000) |