A plate forming part of a bulletproof vest, serving to absorb and disrupt the kinetic energy of impact and reduce blunt trauma to the wearer.

plural of trauma plate

plural of register plate

In rope-making, a disc having holes arranged so as to give the yarns passing through them their proper position for entering into the general twist.

(microbiology) A measure of bacterial contamination of a sample.

(construction) A horizontal timber supporting the heels of rafters.

plural of raising plate

plural of trunnion plate

A raised rim forming a shoulder around the trunnion of a gun.

A scraper used for giving a grindstone a true circular form.