anhydride da or anhydride da .. ( Of anhydrous and t. )( -gone , of acid ). 1. adj. Quím. Said of the product formed by a combination of oxygen with an element not metal and which react with water, gives an acid. U t. c. s. m. anhydride arsenic. 1. m. Quím. Solid white vitreous appearance, composed of pentavalent arsenic and oxygen, very soluble in water and alcohol. It is poisonous. anhydride arsenioso. 1. m. Quím. Solid white, composed of trivalent arsenic and oxygen, sublimable, soluble in hot water and very poisonous. It is used in pharmacy, glass and leather industries and to exterminate harmful plants and animals. It is commonly known with the names of white arsenic and arsenic. anhydride boric. 1. m. Quím. Not crystallizable, colorless, transparent, solid composed of boron and oxygen and that, combined with the water, it forms the boric acid. anhydride carbon. 1. m. Quím. Gas more heavy than air, odorless, colorless, incombustible and suffocating that, by the combination of carbon with oxygen, occurs in the burning and some fermentations. Used in the preparation of sparkling beverages, fire extinguishers and medicine. Carbonic acid and modern carbon dioxide is commonly called. anhydride nitric. 1. m. Quím. White solid, composed of nitrogen and oxygen. It is unstable, apparent oxygen to break down and is combined with water, forming nitric acid with production of heat. anhydride sulfuric. 1. m. Quím. Colorless and crystalline, solid composed of sulfur and oxygen. It is fuming in the air and combines violently with water to form sulphuric acid. It is corrosive, toxic and irritating to the mucous membranes. anhydride sulfur. 1. m. Quím. Colorless gas, strong and irritating, smell resulting from the combination of sulfur with oxygen to burn is the first of these two components. It is also known as sulfurous acid.