Answer: occluding

AnswerCrossword Clue
occluding(of a tooth) Close on or come into contact with another tooth in the opposite jaw
occludingOCCLUDE, to stop up
occludingShut (something) in
occluding(of a solid) Absorb and retain (a gas or impurity)
occludingStop, close up, or obstruct (an opening, orifice, or passage)
occludingCover (an eye) to prevent its use