Noun dm has 2 senses
  1. diabetes mellitus, DM - diabetes caused by a relative or absolute deficiency of insulin and characterized by polyuria; "when doctors say `diabetes' they usually mean `diabetes mellitus'"
    --1 is a kind of diabetes
    --1 has particulars:
     type I diabetes, insulin-dependent diabetes mellitus, IDDM, juvenile-onset diabetes, juvenile diabetes, growth-onset diabetes, ketosis-prone diabetes, ketoacidosis-prone diabetes, autoimmune diabetes; type II diabetes, non-insulin-dependent diabetes mellitus, NIDDM, non-insulin-dependent diabetes, ketosis-resistant diabetes mellitus, ketosis-resistant diabetes, ketoacidosis-resistant diabetes mellitus, ketoacidosis-resistant diabetes, adult-onset diabetes mellitus, adult-onset diabetes, maturity-onset diabetes mellitus, maturity-onset diabetes, mature-onset diabetes; latent diabetes, chemical diabetes
  2. decimeter, decimetre, dm - a metric unit of length equal to one tenth of a meter
    --2 is a kind of metric linear unit
    --2 is a part of meter, metre, m
    --2 has parts: centimeter, centimetre, cm
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