analgesia

/an'l jee"zee euh, -see euh/, n. Med.
absence of sense of pain.
[1700-10; < NL < Gk analgesía painlessness, equiv. to análget(os) without pain (an- AN-1 + álg(os) pain + -etos adj. suffix) + -ia -IA]

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      loss of sensation of pain that results from an interruption in the nervous system pathway between sense organ and brain. Different forms of sensation (e.g., touch, temperature, and pain) stimulating an area of skin travel to the spinal cord by different nerve fibres in the same nerve bundle. Therefore, any injury or disease affecting the nerve would abolish all forms of sensation in the area supplied by it. When sensory nerves reach the spinal cord, however, their fibres separate and follow different courses to the brain. Thus, it is possible for certain forms of sensation to be lost, while others are preserved, in diseases that affect only certain areas of the spinal cord. Because pain and temperature sensations often travel the same path, both may be lost together. Diseases of the spinal cord that may cause analgesia without loss of the sensation of touch are tabes dorsalis, syringomyelia, and tumours (tumour) of the cord. The term is also used for pain relief induced by the action of such medications as aspirin, codeine, and morphine.

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Universalium. 2010.

Look at other dictionaries:

  • analgesia — f. farm. Condición de los medicamentos o sustancias analgésicas. Medical Dictionary. 2011. analgesia abolición de la sensibilidad …   Diccionario médico

  • analgesia — (n.) absence of pain, 1706, medical Latin, from Gk. analgesia painlessness, insensibility, from analgetos without pain, insensible to pain (also unfeeling, ruthless ), from an not (see AN (Cf. an ) (1)) + algein to feel pain (see ALGIA (Cf. alg …   Etymology dictionary

  • analgesia — [an΄əl jē′zē ə, an΄əl jē′sē ə] n. [ModL < Gr analgēsia < an , without + algēsia, pain < algos, pain] a fully conscious state in which a person does not feel painful stimuli …   English World dictionary

  • Analgesia — An al*ge si*a, n. [NL., fr. Gr. ?; an priv. + ? sense of pain.] (Med.) Absence of sensibility to pain. Quain. [1913 Webster] || …   The Collaborative International Dictionary of English

  • analgesia — s. f. [Medicina] Insensibilidade (à dor). = ANALGIA …   Dicionário da Língua Portuguesa

  • analgesia — anesthesia, anodynia (see under ANODYNE) …   New Dictionary of Synonyms

  • analgesia — (Del gr. ἀναλγησία). f. Med. Falta o supresión de toda sensación dolorosa, sin pérdida de los restantes modos de la sensibilidad …   Diccionario de la lengua española

  • analgesia —    The term analgesia comes from the Greek words an (not) and algos (pain). It is used to denote a specific loss or impairment of sensitivity to painful stimuli of a tactile, thermal, chemical, or other physical origin. Etiologically, the… …   Dictionary of Hallucinations

  • analgesia — (Del gr. analgesia < an, privativo + algos, dolor.) ► sustantivo femenino MEDICINA Supresión o ausencia de toda sensación dolorosa. * * * analgesia (del gr. «analgēsía») f. Med. Inexistencia de sensaciones dolorosas, aunque exista causa… …   Enciclopedia Universal

  • analgesia — {{#}}{{LM A02260}}{{〓}} {{[}}analgesia{{]}} ‹a·nal·ge·sia› {{《}}▍ s.f.{{》}} Falta o supresión de toda sensación dolorosa: • La analgesia, a diferencia de la anestesia, no elimina las otras formas de la sensibilidad.{{○}}… …   Diccionario de uso del español actual con sinónimos y antónimos

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