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Definition
 
enEnglish
Oxygen definition: An element with atomic symbol O, atomic number 8, and atomic weight 16. It is the most abundant element on earth and essential for respiration.
oxygen definition: use this term only for elemental or gaseous oxygen (02); for other compounds see OXYGEN COMPOUND.
Oxygen definition: An element with atomic symbol O, atomic number 8, and atomic weight 16.
Oxygen Consumption definition: The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)
oxygen consumption definition: rate at which oxygen is used by a tissue.
Oxygen Isotopes definition: Stable oxygen atoms that have the same atomic number as the element oxygen, but differ in atomic weight. O-17 and 18 are stable oxygen isotopes.
Reactive Oxygen Species definition: Molecules or ions formed by the incomplete one-electron reduction of oxygen. These reactive oxygen intermediates include SINGLET OXYGEN; SUPEROXIDES; PEROXIDES; HYDROXYL RADICAL; and HYPOCHLOROUS ACID. They contribute to the microbicidal activity of PHAGOCYTES, regulation of signal transduction and gene expression, and the oxidative damage to NUCLEIC ACIDS; PROTEINS; and LIPIDS.
Reactive Oxygen Species definition: Organic or inorganic chemicals that contain an oxygen atom with an unpaired electron. This unstable electron configuration causes these chemicals to be highly reactive with other molecules.
Oxygen Radical definition: An oxygen species that carries an unpaired electron (e.g., the hydroxyl radical and the superoxide anion). These radicals are very powerful oxidizing agents and cause structural damage to proteins and nucleic acids. They mediate the damaging effects of ionizing radiation. (from Online Medical Dictionary)
MASK, OXYGEN definition: An oxygen mask is a device placed over a patient's nose, mouth, or tracheostomy to administer oxygen or aerosols.
Masks, Air-Oxygen definition: Devices used to deliver air, oxygen, or a mixture of the gases to a patient's airway. Air-oxygen masks are connected to the gas source with tubing and typically include head straps for stabilization. The devices are made of plastic or rubber.
Oxygen-Air Proportioners definition: Devices used to mix compressed air and oxygen to achieve oxygen concentrations of 21% to 100% at either high- or low-output flows; typically, the device receives air and oxygen from the hospital gas pipeline or from other compressed gas sources. Oxygen-air proportioners are usually equipped with a pressure-regulating mechanism. The mixed gas output can be passed through a humidifier or nebulizer and delivered to patients at flows ranging from 1 L/min to more than 100 L/min using ventilators, tracheostomy tubes, endotracheal tubes, oxygen tents, oxygen hoods, or masks.
TENT, OXYGEN definition: A nonpowered oxygen tent is a device that encloses a patient's head and upper body to contain oxygen delivered to the patient for breathing. This generic type of device includes infant oxygen hoods.
Tents, Oxygen definition: Tents designed to provide an oxygen-enriched and humid environment for patient breathing. These tents typically consist of a pliable plastic sheet held by a plastic or metallic frame that is suspended as a canopy above the bed; some tents cover only the head and part of the torso. Oxygen administration tents are usually connected to an oxygen source and/or humidifier through wide-bore tubing. The use of these tents avoids the need to directly attach a nasal cannula, face mask, or endotracheal tube to the patient. These tents are especially useful to facilitate the treatment of breathing and other cardiopulmonary disorders that limit the body's supply of oxygen by providing a higher concentration of oxygen than is normally present in the air. Small dedicated tents designed to be attached to the patient's chin and strapped around the neck (face tents) are also available.
Oxygen Inhalation Therapy definition: Inhalation of oxygen aimed at restoring toward normal any pathophysiologic alterations of gas exchange in the cardiopulmonary system, as by the use of a respirator, nasal catheter, tent, chamber, or mask. (From Dorland, 27th ed & Stedman, 25th ed)
Oxygen Therapy Care definition: Actions performed to support the administration of oxygen treatment.
oxygen therapy definition: inhalation of oxygen aimed at normalizing any pathophysiologic alterations of gas exchange in the cardiopulmonary system.
Warburg Therapy definition: The cornerstone of oxygenation therapy is the presumption that human disease, including cancer, is caused by a deficit of tissue oxygen. According to proponents, hypoxia results in anaerobic fermentation, a loss of capacity for oxidative detoxification of toxins and metabolic products, and failure of immune killing of invading bacteria and viruses. To restore ability to carry out these functions, oxygenation promoters propose using chemicals they claim will release oxygen in tissue or act as germicides in vivo.
Oxygen Compounds definition: Inorganic compounds that contain oxygen as an integral part of the molecule.
hypoxia definition: reduction of oxygen supply to tissue below physiological level.
hypoxia definition: Having too little oxygen.
hypoxic definition: Having too little oxygen.
Hypoxia definition: A decrease in the amount of oxygen in the body. Symptoms range from mild (impaired judgment, memory loss, impaired motor coordination) to severe (seizures and coma).
Hypoxic definition: Status of decreased oxygen in inspired gases, arterial blood, or tissues. -- 2003
hyperbaric oxygen definition: Oxygen that is at an atmospheric pressure higher than the pressure at sea level. Breathing hyperbaric oxygen to enhance the effectiveness of radiation therapy is being studied.
hyperbaric oxygen definition: Oxygen that is administered at a higher pressure compared to standard (i.e. sea-level) atmospheric pressure. Administration of oxygen under hyperbaric conditions enhances the delivery of oxygen to hypoxic tumor cells, thereby increasing their sensitivity to radiation and chemotherapy. In addition, hyperbaric oxygen may improve the healing of radiation-induced injuries by improving oxygen delivery to damaged tissue. Check for "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39479&idtype=1" active clinical trials or "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39479&idtype=1&closed=1" closed clinical trials using this agent. ("http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C2351" NCI Thesaurus)
Hyperbaric Oxygen definition: Oxygen that is administered at a higher pressure compared to standard (i.e. sea-level) atmospheric pressure. Administration of oxygen under hyperbaric conditions enhances the delivery of oxygen to hypoxic tumor cells, thereby increasing their sensitivity to radiation and chemotherapy. In addition, hyperbaric oxygen may improve the healing of radiation-induced injuries by improving oxygen delivery to damaged tissue. (NCI04)
oxygen compound definition: tree heading term for oxygen-containing chemicals.
CANNULA, NASAL, OXYGEN definition: A nasal oxygen cannula is a two-pronged device used to administer oxygen to a patient through both nostrils.
CATHETER, NASAL, OXYGEN definition: A nasal oxygen catheter is a device intended to be inserted through a patient's nostril to administer oxygen.
Catheters, Nasal, Oxygen Supply definition: Nasal catheters designed for delivery of oxygen into either of the nasal cavities. These catheters typically consist of a soft plastic tube with an internal diameter of 3 to 6 mm (l/8 to 1/4 inch); the distal tip is foam-collared and inserted into a nostril. Oxygen-supply nasal catheters are mostly used for short-term oxygen administration (e.g., in the immediate postoperative period); these catheters can be used in patients with a nasogastric tube in situ in the other nostril.
Cannulae, Nasal, Oxygen Supply definition: Nasal cannulae designed for delivery of oxygen into the nasal cavities. These cannulae typically consist of a plastic tube 6 mm (1/4 inch) in diameter that includes two prongs that project about 1 cm into the nose on both sides. Oxygen-supply nasal cannulae are used for short-term oxygen administration (e.g., in the immediate postoperative period); they are also used for long-term oxygen therapy in patients with chronic oxygen-dependent respiratory failure (e.g., chronic obstructive pulmonary disease, interstitial fibrosis, diffusion defect).
CONSERVER, OXYGEN definition: A noncontinuous ventilator (intermittent positive pressure breathing-IPPB) is a device intended to deliver intermittently an aerosol to a patient's lungs or to assist a patient's breathing.
oxygen binding definition: Interacting selectively with oxygen (O2). [GOC:jl]
detection of oxygen definition: The series of events in which an oxygen stimulus is received by a cell and converted into a molecular signal. [GOC:mtg_cardio]
oxygen definition: [1] Sauerstoff
oxygen definition: Oxygène.
 
 
deGerman
Sauerstoff definition: [1] Chemie: Chalkogen mit stark oxidierender Wirkung [2] Chemie: farbloses, geruchloses, brandförderndes Gas; wichtiger Stoff im Stoffwechsel
A-Stoff definition: [1] Raketentechnik, Raumfahrt: der als Raketentreibstoff verwendete flüssige Sauerstoff [2] Drucktechnik: die höchste Qualitätsstufe bei Papier
 
caCatalan
oxigen definition: [1] Chemie: Sauerstoff ist ein nichtmetallisches Element der Gruppe VI des Periodensystems
 
isIcelandic
súrefni definition: [1] Sauerstoff
 
ltLithuanian
deguonis definition: [1] Sauerstoff
 
hyArmenian
թթվածին definition: [1] Chemie: Sauerstoff m (Element) [2] Chemie: Sauerstoff m (Gas)
 
zhChinese
氧 definition: [1] Sauerstoff
 
euBasque
oxigeno definition: [1] Chemie: sich mit fast allen anderen Elementen zu Oxiden verbindendes nichtmetallisches chalkogenes Element. [2] Chemie: farbloses, geruchloses, brandförderndes Gas.