the blockage or closing of an opening, blood vessel, or hollow organ

examination revealed central retinal artery occlusion

occlusion of the external ear canal

a process whereby something is hidden or obscured from prominence or view

the occlusion of female agency in recent and contemporary discourse on the subject

we interpreted the gaps and occlusions in Alma-Tadema's compositions as signs of the unpredictability of modernity

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

often, in the later stages of a storm's life cycle, a frontal occlusion occurs

the position of the teeth when the jaws are closed