Breastwork may mean:
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Breastwork (fortification)
A breastwork is a temporary fortification, often an earthwork thrown up to breast height to provide protection to defenders firing over it from a standing position. A more permanent structure, normally in stone, would be described as a parapet or ...
, a temporary military fortification
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Breastwork monitor, a type of heavily armored Royal Navy warship
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Breast implant
A breast implant is a prosthesis used to change the size, shape, and contour of a person's breast. In reconstructive plastic surgery, breast implants can be placed to restore a natural looking breast following a mastectomy, to correct congenital ...
, surgical alteration of the breast
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