absorption

absorption
1. The taking in, incorporation, or reception of gases, liquids, light, or heat. Cf.:adsorption. 2. In radiology, the uptake of energy from radiation by the tissue or medium through which it passes. See half-value layer, photoelectric effect, attenuation. [L. absorptio, fr. absorbeo, to swallow]
- cutaneous a. SYN: percutaneous a..
- disjunctive a. a. of living tissue in immediate relation with a necrosed part, producing a line of demarcation.
- electron resonance a. electron spin resonance.
- external a. the a. of substances through skin, mucocutaneous surfaces, or mucous membranes.
- interstitial a. the removal of water or of substances in the interstitial fluid by the lymphatics.
- parenteral a. a. by any route other than the alimentary tract.
- pathologic a. parenteral a. of any excremental or pathologic material into the bloodstream, e.g., pus, urine, bile, etc.
- percutaneous a. the a. of drugs, allergens, and other substances through unbroken skin. The corneal layer of epidermis is the principal barrier. SYN: cutaneous a..
- photoelectric a. interaction of a gamma photon with matter in which the incident photon is completely absorbed, giving up all its energy by displacing and accelerating an inner shell electron. SEE ALSO: photoelectric effect.

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ab·sorp·tion əb-'sȯrp-shən, -'zȯrp- n
1) the process of absorbing or of being absorbed <\absorption of nourishment in the small intestine> compare ADSORPTION
2) interception of radiant energy or sound waves

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n.
(in physiology) the uptake of fluids or other substances by the tissues of the body. Digested food is absorbed into the blood and lymph from the alimentary canal. Most absorption of food occurs in the small intestine - in the jejunum and ileum - although alcohol is readily absorbed from the stomach. The small intestine is lined with minute finger-like processes (see villus), which greatly increase its surface area and therefore the speed at which absorption can take place. See also assimilation, digestion.

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ab·sorp·tion (ab-sorpґshən) [L. absorptio] 1. the uptake of substances into or across tissues such as the skin, intestine, or renal tubules. 2. in psychology, devotion of thought to one object or activity, with inattention to others. 3. radiation a. 4. in chemistry, the penetration of a substance within the inner structure of another. Cf. adsorption.

Medical dictionary. 2011.

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  • absorption — [ apsɔrpsjɔ̃ ] n. f. • 1586; lat. absorptio 1 ♦ Action d absorber. L absorption de l eau par les terrains perméables; d une crème par la peau. Physiol. Absorption digestive : passage des produits de la digestion dans le sang et la lymphe, au… …   Encyclopédie Universelle

  • Absorption [1] — Absorption. Die Absorption der Gase durch feste Körper und Flüssigkeiten ist eine Wirkung derselben Molekularkräfte, welche die Erscheinungen der Adhäsion und der Lösung hervorbringen. In vielen Fällen, ohne daß feste stöchiometrische Beziehungen …   Lexikon der gesamten Technik

  • Absorption — may refer to:Chemistry and biology*Absorption (chemistry), absorption of particles of gas or liquid in liquid or solid material *Absorption (skin), a route by which substances can enter the body through the skin *Absorption (pharmacokinetics),… …   Wikipedia

  • Absorption — oder absorbieren (von lateinisch absorptio bzw. absorbere, „(ab /auf)saugen“) steht für: Absorption (Chemie), die Aufnahme eines Stoffes durch einen anderen Absorption (Physik), verschiedene Transformationsvorgänge, vor allem in der Akustik;… …   Deutsch Wikipedia

  • Absorption [2] — Absorption, photochemische. Da Licht, das auf irgend welche Substanzen chemisch einwirkt, dabei offenbar eine gewisse Arbeit leistet, so ist zu erwarten, daß es stärker absorbiert wird, als wenn keine chemische Einwirkung stattfindet. Ueber die… …   Lexikon der gesamten Technik

  • Absorption — Ab*sorp tion, n. [L. absorptio, fr. absorbere. See {Absorb}.] 1. The act or process of absorbing or sucking in anything, or of being absorbed and made to disappear; as, the absorption of bodies in a whirlpool, the absorption of a smaller tribe… …   The Collaborative International Dictionary of English

  • absorption — ab·sorp·tion n: the application to the states of rights guaranteed by the U.S. Constitution while Powell [ v. Alabama ] was sometimes described as having absorbed the right to counsel, the Court there clearly limited any such absorption W. R.… …   Law dictionary

  • Absorption — (lat., »Ein , Aufsaugung«). 1) Die A. der Gase durch Flüssigkeiten ist im allgemeinen bei niederer Temperatur größer als bei höherer und wird sehr stark durch den Druck beeinflußt. 1 Lit. Wasser verschluckt bei 15° stets 1 L. Kohlensäure, unter… …   Meyers Großes Konversations-Lexikon

  • Absorption — (lat., »Aufsaugung«), die Eigenschaft fester und flüssiger Körper, Gasarten in sich aufzunehmen oder auf ihrer Oberfläche zu verdichten. Gut ausgeglühte, fein poröse Holzkohle hat die Fähigkeit, Gase einzusaugen, in sehr hohem Grade;… …   Kleines Konversations-Lexikon

  • absorption — [n1] assimilation, incorporation consumption, digestion, drinking in, exhaustion, fusion, imbibing, impregnation, ingestion, inhalation, intake, osmosis, penetration, reception, retention, saturation, soaking up, suction, taking in; concepts… …   New thesaurus

  • Absorption [3] — Absorption der Sonnenwärme, s. Geothermik …   Lexikon der gesamten Technik

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