occlusion

occlusion
noun
[mass noun]

(Medicine)the blockage or closing of a blood vessel or hollow organ
(医)（血管或空腔器官的）梗塞，闭塞
[count noun](Meteorology)a process by which the cold front of a rotating low-pressure system catches up the warm front, so that the warm air between them is forced upwards off the earth's surface between wedges of cold air
(气象)锢囚过程
■[count noun]an occluded front
锢囚锋
(Dentistry)the position of the teeth when the jaws are closed
(牙科)（上下齿咬合时的）牙位

派生
occlusive
adjective
语源

mid 17th cent.: from Latin occlus- 'shut up' (from the verb occludere) + -ion

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