1stop, close up, or obstruct (an opening, orifice, or passage):thick make-up can occlude the pores
shut in:they were occluding the waterfront with a wall of buildings
cover (an eye) to prevent its use:it is placed at eye level with one eye occluded
2 [no object] (of a tooth) come into contact with another tooth in the opposite jaw:in monkeys and apes, the upper canine occludes with the lower first premolar
3 Chemistry (of a solid) absorb and retain (a gas or impurity):occluded within these crystals are other molecules
