Definition of trial and error. : a finding out of the best way to reach a desired result or a correct solution by trying out one or more ways or means and by noting and eliminating errors or causes of failure; also : the trying of one thing or another until something succeeds.
Causes of Type 2 diabetes may include these medical conditions: Metabolic syndrome - a syndrome with 4 key features (diabetes, hypertension, obesity/overweight, and high cholesterol). Hemochromatosis - iron overload causes pancreas damage that can mimic Type 1 or Type 2 diabetes.
Conditions that can mimic asthma include: 1  Sinusitis: Also called a sinus infection; an inflammation or swelling of the sinuses. Sinusitis and asthma often coexist.  Myocardial ischemia: A disease of heart function characterized by inadequate blood flow to the muscle tissue of the heart.