Tools & Resources. Most Men Don't Need PSA Tests, Doctors' Group Says. MONDAY, April 8 (HealthDay News) -- Men have long been encouraged to get prostate cancer screenings, but there's insufficient evidence that the benefits of a PSA test outweigh the substantial risks associated with the screening.
There are two types of crimp used when reloading handgun cartridges: the roll crimp and the taper crimp. Roll Crimping. With a roll crimp, the diameter at the very end of the case mouth is reduced, and rolled inward toward the bullet, leaving a slight radius at the top of the case.
Princeton's WordNet(3.00 / 1 vote)Rate this definition: 1  taper(noun) a convex shape that narrows toward a point. 2  taper(noun) the property possessed by a shape that narrows toward a point (as a wedge or cone) 3  wick, taper(noun) a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame.