1. (Tools) a piece of equipment for measuring the hardness of a material, in particular plastic or rubber. 2. (Units) the measurement of the hardness of a material, in particular plastic or rubber.
The DSM-5 was published on May 18, 2013, superseding the DSM-IV-TR, which was published in 2000.
The DSM. Psychologists and psychiatrists use a reference book called the Diagnostic and Statistical Manual of Mental Disorders (DSM) to diagnose psychological disorders. The American Psychiatric Association published the first version of the DSM in 1952. It has been revised several times, and the newest version is commonly referred to as the DSM-IV.