| 单词 | occlusion |
| 释义 | occlusion (once / 61559 pages) 1n 2n 3n Occlusion is either the act of blocking something or a specific blockage. There can be occlusions blocking the street or your arteries. When dentists say occlusion, they’re talking about what your teeth look like when your mouth is closed. An occlusion blocks anything that flows, like cars, people, water, or blood. You can say there's occlusion if a pipe is clogged. If you find out a golf ball was in the pipe, the ball was an occlusion. This word applies to things that block and the act of blocking. People have heart attacks when there's occlusion in their arteries. An overturned truck would be an occlusion on the highway. Occlusions are in the way. WORD FAMILYocclusion: occlusions+/occlude: occluded, occludes, occluding, occlusion, occlusive USAGE EXAMPLESHe’s completely blind in his left eye; his right recently sustained a retinal vein occlusion that has blurred his vision. Washington Times(Jul 17, 2016) And, too, if a plaque ruptures, due to the shearing stress of blood flow, complete occlusion can happen. Washington Times(Jun 17, 2016) And the system remains vulnerable to the problems of current technology, like pump failures and occlusions in tubing. Wall Street Journal(May 08, 2016) 1 1n the act of blocking Syn|Hypo|Hyper blockage, closure implosion the initial occluded phase of a stop consonant obstruction the act of obstructing 2n closure or blockage (as of a blood vessel) Hypo|Hyper laryngospasm a closure of the larynx that blocks the passage of air to the lungs embolismocclusion of a blood vessel by an embolus (a loose clot or air bubble or other particle) thromboembolismocclusion of a blood vessel by an embolus that has broken away from a thrombus thrombosisthe formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel coronary occlusionocclusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot aeroembolism, air embolism, gas embolismobstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving fat embolismserious condition in which fat blocks an artery; fat can enter the blood stream after a long bone is fractured or if adipose tissue is injured or as a result of a fatty liver pulmonary embolismblockage of the pulmonary artery by foreign matter or by a blood clot cerebral thrombosisa blood clot in a cerebral artery or vein coronary, coronary thrombosisobstruction of blood flow in a coronary artery by a blood clot (thrombus) milk leg, phlegmasia alba dolens, white legpainful thrombosis of the femoral vein in the leg following childbirth phlebothrombosis, venous thrombosisthrombosis of a vein without prior inflammation of the vein; associated with sluggish blood flow (as in prolonged bedrest or pregnancy or surgery) or with rapid coagulation of the blood attack a sudden occurrence of an uncontrollable condition 3n an obstruction in a pipe or tube 2Syn|Hypo|Hyper block, blockage, closure, stop, stoppage breech closer, breechblock a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing plug, stopper, stoppleblockage consisting of an object designed to fill a hole tightly vapor lock, vapour locka stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor) bung, spilea plug used to close a hole in a barrel or flask bottle cork, corkthe plug in the mouth of a bottle (especially a wine bottle) drainpluga removable plug for holding water in a tub or basin earpluga plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise fipplea wooden plug forming a flue pipe (as the mouthpiece of a recorder) tampion, tompionplug for the muzzle of a gun to keep out dust and moisture tamponplug of cotton or other absorbent material; inserted into wound or body cavity to absorb exuded fluids (especially blood) spigot, tapa plug for a bunghole in a cask impediment, impedimenta, obstructer, obstruction, obstructor any structure that makes progress difficult n (dentistry) the normal spatial relation of the teeth when the jaws are closed 3Hyper position, spatial relation the spatial property of a place where or way in which something is situated n (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft Syn|Hyper occluded front front (meteorology) the atmospheric phenomenon created at the boundary between two different air masses |
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