of Chamfer
Source: Webster's dictionaryFlint blade Truncated bladelet Backed edge bladelet Dufour bladelet Backed edge blades Backed edge blades have one of the edges, generally a side one, rounded or chamfered by abrupt retouching. Source: Internet
It has a large flat-plate turret with slightly chamfered sides, vertical rear and very chmfered front and a large A-frame crane on the front of the turret. Source: Internet
It is often chamfered on the inside to make loading the cannon easier. Source: Internet