occlusion
2 antonyms for occlusion — opposites grouped by meaning.
Noun — The act of blocking something, or the thing that does the blocking.
Antonyms
Etymology
Borrowed from Late Latin occlūsiō, occlūsiōnis (“occluding, obstruction”), which came from Classical Latin occlūdō (“to shut up or close up; to restrain”), itself from ob plus claudō (“to shut or close”).
Full origin of occlusion →