What is the X in X-mas?
occlusal oc·clu·sal (ə-klōō'zəl, -səl)
Of or relating to occlusion or closure.
Of or relating to the contacting surfaces of opposing teeth, especially the biting or chewing surfaces.
occlusion oc·clu·sion (ə-klōō'zhən)
The act of occluding or the state of being occluded.
An obstruction or a closure of a body passage.
Any contact between the cutting or chewing surfaces of opposing teeth.
The alignment of the teeth of the upper and lower jaws when brought together.
The absorption of a gas or other substance, as by a metal.
The inclusion of one substance within another.