To close, obstruct, or prevent the passage. To occlude an artery is to obstruct the flow of blood. Occlude can also mean to bring together. To occlude the teeth is to align the upper and lower teeth, as for chewing or closing the mouth.

block passage through; "obstruct the path"

To close the two jaws so that the upper and lower teeth mesh (bite) together.

To take in and retain; to absorb; -- said especially with respect to gases; as, iron, platinum, and palladium occlude large volumes of hydrogen.

To take in or retain a material in the pores of another material. For example, many pigments contain occluded air.

To shut up; to close.

To close off. To block.