Biological_Process_Has_Initiator_Chemical_Or_Drug

**Semantic type:** Conceptual Entity

**Definition:** A role used to assert the relationship between a biological process and a drug or chemical that stimulates the process. The role implies the direct physical interaction of a chemical or drug with a target molecule or complex that results in the initiation of the process. The domain and range for this role are 'Biological Process' and 'Drug, Food, Chemical or Biomedical Material', respectively.