ammonium hydroxide

noun Chemistry.

1. a basic compound, NH4OH, existing only in solution, formed by dissolving ammonia gas in water.

noun

1. a compound existing only in aqueous solution, formed when ammonia dissolves in water to form ammonium ions and hydroxide ions. Formula: NH 4 OHAlso called: aqueous ammonia

1. A colorless, basic, aqueous solution of ammonia used as a household cleanser and in the manufacture of a wide variety of products, including textiles, rayon, rubber, fertilizer, and plastic. Chemical formula: NH4OH.