Princeton's WordNet

1. type I diabetes, insulin-dependent diabetes mellitus, IDDM, juvenile-onset diabetes, juvenile diabetes, growth-onset diabetes, ketosis-prone diabetes, ketoacidosis-prone diabetes, autoimmune diabetes(noun)

   severe diabetes mellitus with an early onset; characterized by polyuria and excessive thirst and increased appetite and weight loss and episodic ketoacidosis; diet and insulin injections are required to control the disease