The word secreter can be defined as a person or thing that produces and releases a substance or fluid through a gland or organ. Some synonyms for secreter include excretor, emitter, releaser, producer, and discharger. An excretor is someone or something that expels waste products from the body, whereas an emitter is someone or something that emits radiation or particles. A releaser releases a specific substance or chemical into the environment, while a producer generates something, especially energy or resources. Finally, a discharger is someone or something that releases a substance or fluid, often in a careless or uncontrolled manner. These synonyms can be useful when describing the various types of secreting mechanisms that exist in nature.