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.
In 1987 the DSM-III-R appeared as a revision of DSM-III. In 1994, it evolved into DSM-IV. The most recent version is the 'Text Revision' of the DSM-IV, also known as the DSM-IV-TR, published in 2000. DSM-V, is not scheduled for publication until 2010.