Ape'rtion. n.s. [from apertus, Lat.]
- An opening; a passage through any thing; a gap.
The next now in order are the apertions; under which term I do comprehend doors, windows, staircases, chimneys, or other conduits: in short, all inlets or outlets. Wotton's Archit.
- The act of opening; or state of being opened.
The plenitude of vessels, otherways called the plethora, when it happens, causeth an extravasation of blood, either by ruption or apertion of them. Wiseman's Surgery.