Ammonia

**Semantic type:** Biologically Active Substance|Inorganic Chemical

**Definition:** An inorganic compound composed of a single nitrogen atom covalently bonded to three hydrogen atoms that is an amidase inhibitor and neurotoxin. It is both manufactured and produced naturally from bacterial processes and the breakdown of organic matter. Ammonia is used in many industrial processes, and as a fertilizer and refrigerant. It is characterized as a colorless gas or compressed liquid with a pungent odor and exposure occurs by inhalation, ingestion, or contact.

**Synonyms:** - AMMONIA - AMMONIA - Ammonia Solution, Strong