define sensitivities
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sensitivity sensitivity - the ability to respond to physical stimuli or to register small physical amounts or differences; a galvanometer of extreme sensitivity; the sensitiveness of Mimosa leaves does not depend on a change of growth
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Definitions &Translations Hypersensitivity refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity. These reactions may be damaging, uncomfortable, or occasionally fatal.Hypersensitivity reactions require a pre-sensitized state of the host.ypersensitivity refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity. These reactions may be damaging, uncomfortable, or occasionally fatal.
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sensitivity the state or quality of being sensitive; sensitiveness. Physiology. the ability of an organism or part of an organism to react to stimuli; irritability. degree of susceptibility to stimulation.
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Property Information Overview. 1  Resitivity is a measure of the resistance to electrical conduction for a given size of material. 2  Metals are good electrical conductors (high conductivity and low resistivity), while non-metals are mostly poor conductors (low conductivity and high resistivity).
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irritability 1 (physiology) A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways. ( 2 medicine) A condition of morbid excitability of an organ or part of the body; undue susceptibility to the influence of stimuli.
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Habituation Habituation usually refers to a reduction in innate behaviours, rather than behaviours developed during conditioning in which the process is termed extinction . Sensitization is the opposite process to habituation, i.e. an increase in the elicited behavior from repeated presentation of a stimulus.
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sensitizer sensitizer Definition. A substance that causes a person to become susceptible to the adverse health effects of the same or different substance to which he/she had previously not been susceptible.
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Sensitivity to Light Sensitivity to Light. information on nutrition, causes, harmful drugs, lifestyle. Light Sensitivity (photophobia or photosensivity) is a condition where your eyes are overly sensitive to light, possibly causing pain, tearing and discomfort. When light enters the eyes, it causes a chemical reaction in the back of the eyes.
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Sensitivity and specificity Sensitivity refers to the test's ability to correctly detect patients who do have the condition. In the example of a medical test used to identify a disease, the sensitivity of the test is the proportion of people who test positive for the disease among those who have the disease.
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- noun (pl) -ties. 1. a measure of the response of a substance to an electric field, expressed as the ratio of its electric displacement to the applied field strength; measured in farads per metre ε See also relative permittivity, electric constant.
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photosensitivity photosensitivity. [-sen′sitiv′itē]. 1 sensitivity of a cell to light. 2 any abnormal response to exposure to light, specifically, a skin reaction requiring the presence of a sensitizing agent and exposure to sunlight or its equivalent.Photosensitivity includes photoallergic and phototoxic reactions and is common in systemic lupus erythematosus.he skin is a carefully designed interface between our bodies and the outside world. It is infection-proof when intact, nearly waterproof, and filled with protective mechanisms. Sunlight threatens the health of the skin. Normal skin is highly variable in its ability to resist sun damage.
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- Photophobia definition, an abnormal sensitivity to or intolerance of light, as in iritis. See more.
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"What is ""sensitize""" sensitize v. make sensitive or aware; He was not sensitized to her emotional needs [syn: sensitise, sensify, sensibilize, sensibilise] [ant: desensitize] cause to sense; make sensitive; She sensitized me with respect to gender differences in this traditional male-dominated society; My tongue became sensitized to good wine [syn: sensitise] [ant: desensitize, desensitize]
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Spectral sensitivity Spectral sensitivities (normalized responsivity spectra) of human cone cells, S, M, and L types. 1916 plot of spectral sensibilities.. The author also uses the more modern term spectral sensitivity in the same book. Spectral sensitivity is the relative efficiency of detection, of light or other signal, as a function of the frequency or wavelength of the signal.
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- Photosensitivity, sometimes referred to as a sun allergy, is an immune system reaction that is triggered by sunlight.Photosensitivity reactions include solar urticaria, chemical photosensitization, and polymorphous light eruption and are usually characterized by an itchy eruption on patches of sun-exposed skin.hemical photosensitivity. Over 100 substances, swallowed or applied to the skin, are known to cause sun-induced reactions on the skin. A limited number cause most reactions (see Some Substances That Sensitize the Skin to Sunlight).
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Central Sensitization Central Sensitization is an increase in the excitability of neurons within the central nervous system starting at the spinal cord level. Normal inputs from everyday experiences such as touch are amplified to produce abnormally painful responses.Central Sensitization is a major cause of pain hypersensitivity.Central Sensitization plays a key role in the pathophysiology of a number of chronic pain conditions such as neuropathic pain.entral Sensitization can also be a consequence of dysfunctional pain processing such as fibromyalgia, where somehow normal neural inputs from mechanotransducers get diverted into the pain pathway. The underlying mechanisms of Central Sensitization are complex and not fully understood.
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- Neural sensitization is the process by which the response of a neuron to a given stimulus is increased. This increase lasts a long time-weeks or months at least.
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Hypersensitivity Hypersensitivity (also called hypersensitivity reaction or intolerance) is a set of undesirable reactions produced by the normal immune system, including allergies and autoimmunity.
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- What is central sensitization? Central sensitization is a condition of the nervous system that is associated with the development and maintenance of chronic pain. When central sensitization occurs, the nervous system goes through a process called “wind-up” and gets regulated in a persistent state of high reactivity.
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- Define sensitivities. sensitivities synonyms, sensitivities pronunciation, sensitivities translation, English dictionary definition of sensitivities. n. pl. sen·si·tiv·i·ties 1. a. The quality or condition of being sensitive: sensitivity to the concerns of others. b. The capacity to respond to changes in...
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- 1. An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of allergy may include sneezing, itching, and skin rashes. 2. Informal An adverse sentiment; antipathy: an allergy to cocktail parties.
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Immunologic Tolerance Anergy An absence of cell-mediated immune reaction in supposedly sensitized animals or individuals. Anergy is a term in immunobiology that describes a lack of reaction by the body's defense mechanisms to foreign substances, and consists of a direct induction of peripheral lymphocyte tolerance.
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sensibility Sensitivity is a special capability of being sensitive to physiological, chemical action or a tendency to be easily affected by the adverse reactions of others: the sensitivity of a nerve; sensitivity to criticism. 2. alertness, awareness.
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sensitivity The proportion of people with a disease who are correctly diagnosed (test positive based on diagnostic criteria). The higher the sensitivity of a test or diagnostic criteria, the lower the rate of 'false negatives,' people who have a disease but are not identified through the test.
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hypersensitivity A. Allergy is the exaggerated and out-of-place reaction of the immune system to external substances or stimuli that are not harmful to the body, so the reaction actually damages the body instead of helping it. The may be pollen and foods, as well as insect stings, drugs and almost any other substances.
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tolerance Medicine/Medical, Immunology. 1  the power of enduring or resisting the action of a drug, poison, etc.: a tolerance to antibiotics. 2  the lack of or low levels of immune response to transplanted tissue or other foreign substance that is normally immunogenic.