occlusion

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oc·clu·sion / əˈkloōzhən/ • n. 1. Med. the blockage or closing of a blood vessel or hollow organ. ∎ Phonet. the momentary closure of the passage of breath during the articulation of a consonant.2. Meteorol. a process in which the cold front of a rotating low pressure system overtakes the warm front, forcing the warm air upward above a wedge of cold air. ∎  an occluded front.3. Dentistry the position of the teeth when the jaws are closed.DERIVATIVES: oc·clu·sive / -siv/ adj.

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