| obstructive lung disease | <chest medicine> A form of lung disease that manifests as acute or chronic, narrowing or blockage of the smaller airways in the lungs, causing increased resistance to airflow in the bronchial tubes (for example asthma, silicosis, chronic obstructive pulmonary disease from smoking). (27 Sep 1997) |
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| lung diseases, obstructive | Any disorder marked by persistent obstruction of bronchial air flow. (12 Dec 1998) |
| chronic obstructive pulmonary disease | <disease> A progressive disease process that most commonly results from smoking. Chronic obstructive pulmonary disease is characterised by difficulty breathing, wheezing and a chronic cough. Treatment includes absolute avoidance from smoking, bronchodilators and oxygen for those with advanced disease. Complications include bronchitis, pneumonia and lung cancer. See: emphysema. (27 Sep 1997) |
| reversible | Capable of going through a series of changes in either direction, forward or backward, as a reversible chemical reaction. (18 Nov 1997) |
| reversible calcinosis | A form of calcinosis sometimes observed in patients who constantly ingest large quantities of milk and alkaline medicines, as in the treatment of peptic ulcer. (05 Mar 2000) |
| reversible colloid | A colloid that is again soluble in water after having been dried at ordinary temperature. Synonym: stable colloid. (05 Mar 2000) |
| reversible decortication | A temporary loss of function of the cerebral cortex. (05 Mar 2000) |
| reversible hydrocolloid | A hydrocolloid composed of a base substance whose physical state may be changed to that of a liquid by the application of heat and then changed to that of an elastic gel by cooling. (05 Mar 2000) |
| reversible hydrogenase | <enzyme> Isolated from heterocysts and vegetative cells of anabena Registry number: EC 1.12.- (26 Jun 1999) |
| reversible process | <chemistry> A cyclic process carried out by a hypothetical pathway, which leaves the universe exactly the same as it was before the process, no real process is reversible. For chemical systems we consider a process at equilibrium to be reversible. Examples are phase transitions that occur at the melting point or boiling point temperatures at 1 atm pressure. (09 Jan 1998) |
| reversible reaction | A chemical reaction that takes place in either direction i.e., from the forward or reverse direction; ionization is such a reaction, as are reaction's involving racemases, isomerases, mutases, transferases, etc. (05 Mar 2000) |
| reversible shock | Shock that will respond to treatment and from which recovery is possible. (05 Mar 2000) |
| cardiopulmonary obstructive shock | <cardiology> This term describes a number of conditions that involve a severe disturbance of the cardiopulmonary circuit resulting in shock (inadequate delivery of oxygen to the tissues). Examples include: pulmonary embolism, pericardial tamponade, pneumothorax and constrictive pericarditis. (27 Sep 1997) |
| diffuse obstructive emphysema | The major component of chronic obstructive lung disease. (05 Mar 2000) |
| obstructive apnea | Peripheral apnea, apnea either as the result of obstruction of the air passages or inadequate respiratory muscle activity. (05 Mar 2000) |